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Book - Contributions to Embryology Carnegie Institution No.40 - Revision history
2024-03-28T21:46:52Z
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Z8600021 at 21:53, 28 April 2017
2017-04-28T21:53:15Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Historic Disclaimer}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Historic Disclaimer}}</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Hydatiform Degeneration In Tubal And Uterine Pregnancy=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Hydatiform Degeneration In Tubal And Uterine Pregnancy=</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[File:Arthur William Meyer.jpg|thumb|alt=File:Arthur William Meyer.jpg|thumb|alt=Arthur William Meyer (1873 – 1966)|link=Embryology History - Arthur Meyer|Arthur William Meyer (1873 – 1966)]]</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">By [[Embryology History - Arthur Meyer|Arthur William Meyer]]. </ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">By Arthur William Meyer</del>. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Professor of Anatomy in the Lelaiul Stanford Jr. University</ins>. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Professor of Anatomy in the Lelaiul Stanford Jr. University</del>. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Volume IX (1920) pp 327- 364 With six plates</ins>. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Volume IX (1920) pp327- 364 With six plates. </del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:[[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|'''Links''']]: [[:File:Meyer1920_Plate_1.jpg|Plate 1]] | [[:File:Meyer1920_Plate_2.jpg|Plate 2]] | [[:File:Meyer1920_Plate_3.jpg|Plate 3]] | [[:File:Meyer1920_Plate_4.jpg|Plate 4]] | [[:File:Meyer1920_Plate_5.jpg|Plate 5]] | [[:File:Meyer1920_Plate_6.jpg|Plate 6]] | [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|Contribution No.40]] | [[Book_-_Contributions_to_Embryology#Volume_IX|Volume IX]] | [[Book_-_Contributions_to_Embryology|Contributions to Embryology]] | [[Abnormal Development - Hydatidiform Mole|Hydatidiform Mole]] | [[Abnormal_Development_-_Ectopic_Implantation|Tubal Pregnancy]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:[[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|'''Links''']]: [[:File:Meyer1920_Plate_1.jpg|Plate 1]] | [[:File:Meyer1920_Plate_2.jpg|Plate 2]] | [[:File:Meyer1920_Plate_3.jpg|Plate 3]] | [[:File:Meyer1920_Plate_4.jpg|Plate 4]] | [[:File:Meyer1920_Plate_5.jpg|Plate 5]] | [[:File:Meyer1920_Plate_6.jpg|Plate 6]] | [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|Contribution No.40]] | [[Book_-_Contributions_to_Embryology#Volume_IX|Volume IX]] | [[Book_-_Contributions_to_Embryology|Contributions to Embryology]] | [[Abnormal Development - Hydatidiform Mole|Hydatidiform Mole]] | [[Abnormal_Development_-_Ectopic_Implantation|Tubal Pregnancy]]</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig03.jpg|thumb|Fig. 3. Embryo No. 1771, covered with magma.]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig03.jpg|thumb|Fig. 3. Embryo No. 1771, covered with magma.]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig04.jpg|thumb|Fig. 4. Cross-section of tube No. 1771.]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig04.jpg|thumb|Fig. 4. Cross-section of tube No. 1771.]]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Another very interesting specimen of tubal implantation is No. 1771, received from Dr. H. M. N. Wynne, of the Johns Hopkins Hospital. The menstrual age of this specimen is 49 days, but its anatomic age, as based upon length according to Dr. Streeter's curve (unpublished), is 37 days, thus showing a discrepancy between the menstrual and anatomic ages of 12 days. The embryonic length is only 12.5 mm., although with a menstrual age of 49 days it should be at least 18 mm. Upon examination, Dr. Streeter found the chorionic vesicle to contain a good deal of magma, some of which still was adherent to the embryo, as figure 3 shows. As has been repeatedly emphasized in the hterature, the presence of this coagulum in itself probably indicates that the embryo died some time previously.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Another very interesting specimen of tubal implantation is No. 1771, received from Dr. H. M. N. Wynne, of the Johns Hopkins Hospital. The menstrual age of this specimen is 49 days, but its anatomic age, as based upon length according to Dr. Streeter's curve (unpublished), is 37 days, thus showing a discrepancy between the menstrual and anatomic ages of 12 days. The embryonic length is only 12.5 mm., although with a menstrual age of 49 days it should be at least 18 mm. Upon examination, Dr. Streeter found the chorionic vesicle to contain a good deal of magma, some of which still was adherent to the embryo, as figure 3 shows. As has been repeatedly emphasized in the hterature, the presence of this coagulum in itself probably indicates that the embryo died some time previously.</div></td></tr>
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=285380&oldid=prev
Z8600021 at 21:46, 28 April 2017
2017-04-28T21:46:11Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:[[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|'''Links''']]: [[:File:Meyer1920_Plate_1.jpg|Plate 1]] | [[:File:Meyer1920_Plate_2.jpg|Plate 2]] | [[:File:Meyer1920_Plate_3.jpg|Plate 3]] | [[:File:Meyer1920_Plate_4.jpg|Plate 4]] | [[:File:Meyer1920_Plate_5.jpg|Plate 5]] | [[:File:Meyer1920_Plate_6.jpg|Plate 6]] | [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|Contribution No.40]] | [[Book_-_Contributions_to_Embryology#Volume_IX|Volume IX]] | [[Book_-_Contributions_to_Embryology|Contributions to Embryology]] | [[Abnormal Development - Hydatidiform Mole|Hydatidiform Mole]] | [[Abnormal_Development_-_Ectopic_Implantation|Tubal Pregnancy]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:[[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|'''Links''']]: [[:File:Meyer1920_Plate_1.jpg|Plate 1]] | [[:File:Meyer1920_Plate_2.jpg|Plate 2]] | [[:File:Meyer1920_Plate_3.jpg|Plate 3]] | [[:File:Meyer1920_Plate_4.jpg|Plate 4]] | [[:File:Meyer1920_Plate_5.jpg|Plate 5]] | [[:File:Meyer1920_Plate_6.jpg|Plate 6]] | [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40|Contribution No.40]] | [[Book_-_Contributions_to_Embryology#Volume_IX|Volume IX]] | [[Book_-_Contributions_to_Embryology|Contributions to Embryology]] | [[Abnormal Development - Hydatidiform Mole|Hydatidiform Mole]] | [[Abnormal_Development_-_Ectopic_Implantation|Tubal Pregnancy]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">--[[User:Z8600021|Mark Hill]] 19:33, 7 April 2012 (EST) This text has not yet been edited and corrected.</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Introduction==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Introduction==</div></td></tr>
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=285378&oldid=prev
Z8600021 at 21:45, 28 April 2017
2017-04-28T21:45:39Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles (hydatiform mole, hydatid mole, molar pregnancy, gestational trophoblastic disease) using embryos from the [[Carnegie Collection]]. Some of these concepts are historic and have been updated with a better understanding of the genetics of this abnormal development.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles (hydatiform mole, hydatid mole, molar pregnancy, gestational trophoblastic disease) using embryos from the [[Carnegie Collection]]. Some of these concepts are historic and have been updated with a better understanding of the genetics of this abnormal development.</div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">See also: [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.56-8|1921 Hydatiform Degeneration in Uterine Pregnancy]] | [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.56-9|1921 Hydatiform Degeneration in Tubal Pregnancy]]</ins></div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Historic Embryology]] [[Category:Human]] [[Category:Abnormal Development]][[Category:Hydatidiform Mole]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Historic Embryology]] [[Category:Human]] [[Category:Abnormal Development]][[Category:Hydatidiform Mole<ins style="font-weight: bold; text-decoration: none;">]][[Category:1920's</ins>]]</div></td></tr>
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=285376&oldid=prev
Z8600021 at 21:43, 28 April 2017
2017-04-28T21:43:30Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 08:43, 29 April 2017</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>! Online Editor&nbsp;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>! Online Editor&nbsp;</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles using embryos from the [[Carnegie Collection]]. Some of these concepts are historic and have been updated with a better understanding of <del style="font-weight: bold; text-decoration: none;">gastrulation and mesoderm formation</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles <ins style="font-weight: bold; text-decoration: none;">(hydatiform mole, hydatid mole, molar pregnancy, gestational trophoblastic disease) </ins>using embryos from the [[Carnegie Collection]]. Some of these concepts are historic and have been updated with a better understanding of <ins style="font-weight: bold; text-decoration: none;">the genetics of this abnormal development</ins>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''Links:''' [[Abnormal_Development_-_Hydatidiform_Mole|Hydatidiform_Mole]] | [[Carnegie Collection]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''Links:''' [[Abnormal_Development_-_Hydatidiform_Mole|Hydatidiform_Mole]] | [[Carnegie Collection]]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">A type of fertilisation abnormality, when only the conceptus trophoblast layers proliferates and not the embryoblast, no embryo develops, this is called a "hydatidiform mole". Due to the continuing presence of the trophoblastic layer, this abnormal conceptus can also implant in the uterus or ectopically. The trophoblast cells will secrete human chorionic gonadotropin (hCG), as in a normal pregnancy, and may appear maternally and by pregnancy test to be "normal". Prenatal diagnosis by ultrasound analysis demonstrates the absence of a embryo.</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Complete Mole - Only paternal chromosomes.</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Partial Mole - 3 sets of chromosomes ( (triploidy) instead of the usual 2.</ins></div></td></tr>
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=285374&oldid=prev
Z8600021 at 21:41, 28 April 2017
2017-04-28T21:41:11Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles. Some of these concepts are historic and have been updated with a better understanding of gastrulation and mesoderm formation.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles <ins style="font-weight: bold; text-decoration: none;">using embryos from the [[Carnegie Collection]]</ins>. Some of these concepts are historic and have been updated with a better understanding of gastrulation and mesoderm formation.</div></td></tr>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Modern Pages:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''</ins>Modern Pages:<ins style="font-weight: bold; text-decoration: none;">'''</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''Links:''' [[Abnormal_Development_-_Hydatidiform_Mole|Hydatidiform_Mole]] | [[Carnegie Collection]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''Links:''' [[Abnormal_Development_-_Hydatidiform_Mole|Hydatidiform_Mole]] | [[Carnegie Collection]]</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td></tr>
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=285372&oldid=prev
Z8600021 at 21:40, 28 April 2017
2017-04-28T21:40:26Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles. Some of these concepts are historic and have been updated with a better understanding of gastrulation and mesoderm formation.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles. Some of these concepts are historic and have been updated with a better understanding of gastrulation and mesoderm formation.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Modern Pages:</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Links:''' [[<del style="font-weight: bold; text-decoration: none;">Mesoderm</del>]] | [[Carnegie Collection]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Links:''' [[<ins style="font-weight: bold; text-decoration: none;">Abnormal_Development_-_Hydatidiform_Mole|Hydatidiform_Mole</ins>]] | [[Carnegie Collection]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>{{<del style="font-weight: bold; text-decoration: none;">Minot </del>Links}}</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{{<ins style="font-weight: bold; text-decoration: none;">Mall </ins>Links}}</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Historic Disclaimer}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Historic Disclaimer}}</div></td></tr>
</table>
Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=285370&oldid=prev
Z8600021 at 21:39, 28 April 2017
2017-04-28T21:39:02Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 08:39, 29 April 2017</td>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{Ref-Meyer1920}}</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">! Online Editor&nbsp;</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|-</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|[[File:Mark_Hill.jpg|50px|left]] This historic 1920 paper by Arthur William Meyer represents an early description of hydatiform moles. Some of these concepts are historic and have been updated with a better understanding of gastrulation and mesoderm formation.</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">{{Ref-Meyer1920}}</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''Links:''' [[Mesoderm]] | [[Carnegie Collection]]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{Minot Links}}</ins></div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Historic Disclaimer}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Historic Disclaimer}}</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Hydatiform Degeneration In Tubal And Uterine Pregnancy=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Hydatiform Degeneration In Tubal And Uterine Pregnancy=</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Introduction==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Introduction==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The following study is an outgrowth of a survey (planned by Mall) of the embryological collection of the Carnegie Institution of Washington. It was my privilege to share in this undertaking and to be permitted to follow any matters of special interest to me. The following report concerns itself especially with the occurrence of hydatiform degeneration in abortuses and specimens in the Mall Collection which were obtained through operation and were classed as pathological. My attention was attracted to the subject while engaged in an examination of the Hofbauer cells, begun at the suggestion of Mall. For the purpose of convenience I shall discuss the tubal and uterine cases separately, including what is common to both with the latter.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The following study is an outgrowth of a survey (planned by Mall) of the embryological collection of the Carnegie Institution of Washington. It was my privilege to share in this undertaking and to be permitted to follow any matters of special interest to me. The following report concerns itself especially with the occurrence of hydatiform degeneration in abortuses and specimens in the Mall Collection which were obtained through operation and were classed as pathological. My attention was attracted to the subject while engaged in an examination of the Hofbauer cells, begun at the suggestion of Mall. For the purpose of convenience I shall discuss the tubal and uterine cases separately, including what is common to both with the latter.</div></td></tr>
</table>
Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=228409&oldid=prev
Z8600021 at 11:28, 12 May 2016
2016-05-12T11:28:13Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:28, 12 May 2016</td>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{Header}}</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{Historic Disclaimer}}</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Hydatiform Degeneration In Tubal And Uterine Pregnancy=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Hydatiform Degeneration In Tubal And Uterine Pregnancy=</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>--[[User:Z8600021|Mark Hill]] 19:33, 7 April 2012 (EST) This text has not yet been edited and corrected.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>--[[User:Z8600021|Mark Hill]] 19:33, 7 April 2012 (EST) This text has not yet been edited and corrected.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">{{Historic Disclaimer}}</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Introduction==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Introduction==</div></td></tr>
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=136295&oldid=prev
Z8600021 at 08:59, 12 May 2014
2014-05-12T08:59:10Z
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Z8600021
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Contributions_to_Embryology_Carnegie_Institution_No.40&diff=136293&oldid=prev
Z8600021 at 08:25, 12 May 2014
2014-05-12T08:25:48Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:25, 12 May 2014</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l66">Line 66:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There were 40 tubes containing villi only, and in 14 of these hydatiform degeneration probably was present. In 10 specimens its presence was undoubted, but in 4 it was probable only. I realize that this margin of probability is exceedingly largely, but this is easily understood if it is recalled that often only a few degenerate villi embedded in clot were contained in the cross-sections of many of the tubes, and that only a few sections were examined, not, of course, a complete series of each tube. Had the entire tubes been examined, or if more villi had been present, and if those present had been better preserved, the difficulty would have been almost wholly obviated. However, it is idle to set forth these things, because such conditions never will obtain, and the margin of probability becomes greatly reduced if it is remembered that in a large series the specimens necessarily supplement each other. Moreover, the changes in the villi often are so typical that they are unmistakable, even if only a few villi are present. Besides, examination in complete series undoubtedly would increase, not decrease the number found. In some of the doubtful cases the existence of hydatiform degeneration became probable only upon comparison with the many uterine specimens previously examined.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There were 40 tubes containing villi only, and in 14 of these hydatiform degeneration probably was present. In 10 specimens its presence was undoubted, but in 4 it was probable only. I realize that this margin of probability is exceedingly largely, but this is easily understood if it is recalled that often only a few degenerate villi embedded in clot were contained in the cross-sections of many of the tubes, and that only a few sections were examined, not, of course, a complete series of each tube. Had the entire tubes been examined, or if more villi had been present, and if those present had been better preserved, the difficulty would have been almost wholly obviated. However, it is idle to set forth these things, because such conditions never will obtain, and the margin of probability becomes greatly reduced if it is remembered that in a large series the specimens necessarily supplement each other. Moreover, the changes in the villi often are so typical that they are unmistakable, even if only a few villi are present. Besides, examination in complete series undoubtedly would increase, not decrease the number found. In some of the doubtful cases the existence of hydatiform degeneration became probable only upon comparison with the many uterine specimens previously examined.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig01.jpg|thumb|Fig. 1]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig01.jpg|thumb|Fig. 1<ins style="font-weight: bold; text-decoration: none;">. Cross-section of twin hydatiform chorionic vesicles within the tube. (Specimen No. 825.)</ins>]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig02.jpg|thumb|Fig. 2]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig02.jpg|thumb|Fig. 2<ins style="font-weight: bold; text-decoration: none;">. Hydatiform villi from same specimen in section.</ins>]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The evidence offered by the 36 tubal specimens in the second group, which is composed of empty chorionic vesicles or parts thereof, was very conclusive, for the cut portions of most of these tubes contained considerable portions or even sections of whole chorionic vesicles, sometimes quite free from clot. Some of them were implanted almost perfectly in the wall of the tube, and although many of them were folded extremely and collapsed more or less, small areas of several were nevertheless implanted undisturbed within the tube. The villi in some of these implanted specimens were so characteristic and the whole picture so exquisite, that the specimens rightly belong among the very finest instances of hydatiform degeneration found anywhere so far. This is true in particular of the case of twin pregnancy received from Dr. Vest. In this specimen the two chorionic vesicles, the intervillous spaces of which were devoid of blood, lay in almost the same transverse diameter of the tube and hence had distended the latter considerably. Both were implanted quite well over the entire area of contact, which included the whole perimeter of the tube. The chorionic vesicles were; flattened at the region of mutual contact, which divided the tube somewhat unequally as shown in figure 1. Although the embryo and the amnion long had disintegrated completely, and although the chorionic membrane itself is thin, covered by degenerate epithelium and also disintegrating, the epithelium of the villi not only is well preserved but is accompanied by large masses of trophoblast and considerable syncytium. Syncytial buds are found on the chorionic membrane also. The tubal mucosa is larger and the tubal wall partly destroyed by the invading trophoblast. Only a few small vestiges of the walls of the villous vessels remain, and the stroma of all the villi has undergone changes characteristic of hydatiform degeneration represented in figure 2. One villus also contains an epithelial cyst resulting from epithelial invagination with subsequent isolation of the distal extremity, a process to be referred to later in connection with uterine specimens. Since most of the villi of this and similar specimens still are implanted in the tube, there can no longer be any question as to the time in which hydatiform changes in the stroma of the villi may be inaugurated. As illustrated in other instances in which isolated and small groups of villi still were implanted, the advent of degeneration of the stroma occurs, in part at least, before the villus is detached. Hence it is not merely a post-mortem or maceration change.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The evidence offered by the 36 tubal specimens in the second group, which is composed of empty chorionic vesicles or parts thereof, was very conclusive, for the cut portions of most of these tubes contained considerable portions or even sections of whole chorionic vesicles, sometimes quite free from clot. Some of them were implanted almost perfectly in the wall of the tube, and although many of them were folded extremely and collapsed more or less, small areas of several were nevertheless implanted undisturbed within the tube. The villi in some of these implanted specimens were so characteristic and the whole picture so exquisite, that the specimens rightly belong among the very finest instances of hydatiform degeneration found anywhere so far. This is true in particular of the case of twin pregnancy received from Dr. Vest. In this specimen the two chorionic vesicles, the intervillous spaces of which were devoid of blood, lay in almost the same transverse diameter of the tube and hence had distended the latter considerably. Both were implanted quite well over the entire area of contact, which included the whole perimeter of the tube. The chorionic vesicles were; flattened at the region of mutual contact, which divided the tube somewhat unequally as shown in figure 1. Although the embryo and the amnion long had disintegrated completely, and although the chorionic membrane itself is thin, covered by degenerate epithelium and also disintegrating, the epithelium of the villi not only is well preserved but is accompanied by large masses of trophoblast and considerable syncytium. Syncytial buds are found on the chorionic membrane also. The tubal mucosa is larger and the tubal wall partly destroyed by the invading trophoblast. Only a few small vestiges of the walls of the villous vessels remain, and the stroma of all the villi has undergone changes characteristic of hydatiform degeneration represented in figure 2. One villus also contains an epithelial cyst resulting from epithelial invagination with subsequent isolation of the distal extremity, a process to be referred to later in connection with uterine specimens. Since most of the villi of this and similar specimens still are implanted in the tube, there can no longer be any question as to the time in which hydatiform changes in the stroma of the villi may be inaugurated. As illustrated in other instances in which isolated and small groups of villi still were implanted, the advent of degeneration of the stroma occurs, in part at least, before the villus is detached. Hence it is not merely a post-mortem or maceration change.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig03.jpg|thumb|Fig. 3]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig03.jpg|thumb|Fig. 3<ins style="font-weight: bold; text-decoration: none;">. Embryo No. 1771, covered with magma.</ins>]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig04.jpg|thumb|Fig. 4]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig04.jpg|thumb|Fig. 4<ins style="font-weight: bold; text-decoration: none;">. Cross-section of tube No. 1771.</ins>]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Another very interesting specimen of tubal implantation is No. 1771, received from Dr. H. M. N. Wynne, of the Johns Hopkins Hospital. The menstrual age of this specimen is 49 days, but its anatomic age, as based upon length according to Dr. Streeter's curve (unpublished), is 37 days, thus showing a discrepancy between the menstrual and anatomic ages of 12 days. The embryonic length is only 12.5 mm., although with a menstrual age of 49 days it should be at least 18 mm. Upon examination, Dr. Streeter found the chorionic vesicle to contain a good deal of magma, some of which still was adherent to the embryo, as figure 3 shows. As has been repeatedly emphasized in the hterature, the presence of this coagulum in itself probably indicates that the embryo died some time previously.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Another very interesting specimen of tubal implantation is No. 1771, received from Dr. H. M. N. Wynne, of the Johns Hopkins Hospital. The menstrual age of this specimen is 49 days, but its anatomic age, as based upon length according to Dr. Streeter's curve (unpublished), is 37 days, thus showing a discrepancy between the menstrual and anatomic ages of 12 days. The embryonic length is only 12.5 mm., although with a menstrual age of 49 days it should be at least 18 mm. Upon examination, Dr. Streeter found the chorionic vesicle to contain a good deal of magma, some of which still was adherent to the embryo, as figure 3 shows. As has been repeatedly emphasized in the hterature, the presence of this coagulum in itself probably indicates that the embryo died some time previously.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig05.jpg|thumb|Fig. 5]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig05.jpg|thumb|Fig. 5<ins style="font-weight: bold; text-decoration: none;">. Cross-section of tube from same case.</ins>]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig06.jpg|thumb|Fig. 6]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig06.jpg|thumb|Fig. 6<ins style="font-weight: bold; text-decoration: none;">. Hydatiform villi from same case.</ins>]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The wall of the tube is quite thin, as figure 4 shows, but the implantation is fairly well preserved around the whole perimeter of the specimen. The mucosa is destroyed throughout the greater extent of the section and the trophoblast is abundant, except in one rather degenerate and hemorrhagic area. The chorionic membrane is thin but contains some vessels distended with blood. The stroma of many of the villi also contains vessels filled with blood, but the vessels in many others are very evidently in degeneration. The syncytium is scanty and many of the villi are very plainly hydatiform, as seen in figures 5 and 6.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The wall of the tube is quite thin, as figure 4 shows, but the implantation is fairly well preserved around the whole perimeter of the specimen. The mucosa is destroyed throughout the greater extent of the section and the trophoblast is abundant, except in one rather degenerate and hemorrhagic area. The chorionic membrane is thin but contains some vessels distended with blood. The stroma of many of the villi also contains vessels filled with blood, but the vessels in many others are very evidently in degeneration. The syncytium is scanty and many of the villi are very plainly hydatiform, as seen in figures 5 and 6.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig07.jpg|thumb|Fig. 7]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Meyer1920_fig07.jpg|thumb|Fig. 7<ins style="font-weight: bold; text-decoration: none;">. Hydatiform chorionic vesicle in loco with the tube incised. No. 2052.</ins>]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A third exceptionally fine specimen of tubal hydatiform mole is No. 2052, donated by Dr. N. M. Davis, of Washington, D. C. Figure 7 shows a portion of the tube containing the hydatiform mole, some hydatiform villi of which protrude through an incision in the wall of the tube. The whole opening is filled with typical hydatiform villi barely detected by the unaided eye but perfectly evident under an enlargement of 4 diameters. They present an extremely fine picture when seen with the binocular under a magnification of 10 to 20 diameters. Examination under a higher magnification shows that the preservation of the specimen is unusually good and that all the villi are markedly hydatiform. Trophoblastic proUferation is so marked that in some places it gives the appearance of decidual formation.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A third exceptionally fine specimen of tubal hydatiform mole is No. 2052, donated by Dr. N. M. Davis, of Washington, D. C. Figure 7 shows a portion of the tube containing the hydatiform mole, some hydatiform villi of which protrude through an incision in the wall of the tube. The whole opening is filled with typical hydatiform villi barely detected by the unaided eye but perfectly evident under an enlargement of 4 diameters. They present an extremely fine picture when seen with the binocular under a magnification of 10 to 20 diameters. Examination under a higher magnification shows that the preservation of the specimen is unusually good and that all the villi are markedly hydatiform. Trophoblastic proUferation is so marked that in some places it gives the appearance of decidual formation.</div></td></tr>
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