File:Mall Meyer1921 fig187.jpg: Difference between revisions

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Fig. 187. Slight swelling of fetus from brief maceration

No. 2146. X2.

The earliest noticeable external post-mortem change in the color of the embryo is due to the occurrence of a greater opacity. The tissues lose their normal translucence, so that they look whiter and denser, and the surface also becomes less glistening. Later they also become yellowish and occasionally hemorrhagic, and the cutaneous surface becomes less smooth. Coincident with these changes, softening and some swelling also take place, as illustrated by No. 2146, shown in figure 187, and bleb formation occurs, especially on the abdominal extremity of the umbilical cord and elsewhere, as previously shown in figures 54, 70, 71, and 72 (plate 5, Chap. IV).

One might expect that maceration, even under sterile conditions, especially in case of young specimens, would result in general distention, but this does not always seem to be the case. Edematous areas do, indeed, frequently form locally, as previously illustrated and as generally observed; but swelling due to imbibition, such as occurs when fresh young specimens are placed in formaldehyde, was observed only in a minor degree, as illustrated by No. 2146, shown in figure 187.

Plate 18: Figs. 187 | Figs. 188 | Fig. 189 | Fig. 190 | Fig. 191 | Fig. 192 | Fig. 193 | Fig. 194 | Fig. 195 | Fig. 196 | Fig. 197 | Fig. 198 | Fig. 199 | Fig. 200 | Fig. 201 | Fig. 202 | Fig. 203 | Fig. 204 | Fig. 205 | Fig. 206 | Fig. 207 | Fig. 208 | Fig. 209 | Fig. 210 | Fig. 211 | Fig. 212 | Fig. 213 | Fig. 214 | Fig. 215 | Fig. 216 | Chapter 13 Post-Mortem Intrauterine Changes

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Mall FP. and Meyer AW. Studies on abortuses: a survey of pathologic ova in the Carnegie Embryological Collection. (1921) Contrib. Embryol., Carnegie Inst. Wash. Publ. 275, 12: 1-364.

In this historic 1921 pathology paper, figures and plates of abnormal embryos are not suitable for young students.

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current	09:52, 3 December 2012		375 × 650 (31 KB)	Z8600021 (talk \| contribs)	==Fig. 187. Slight swelling of fetus from brief maceration== No. 2146. X2. {{Mall Meyer1921Plate18}} {{Carnegie56 TOC}}

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 No. 2146. X2.
+The earliest noticeable external post-mortem change in the color of the embryo is due to the occurrence of a greater opacity. The tissues lose their normal translucence, so that they look whiter and denser, and the surface also becomes less glistening. Later they also become yellowish and occasionally hemorrhagic, and the cutaneous surface becomes less smooth. Coincident with these changes, softening and some swelling also take place, as illustrated by No. 2146, shown in figure 187, and bleb formation occurs, especially on the abdominal extremity of the umbilical cord and elsewhere, as previously shown in figures 54, 70, 71, and 72 (plate 5, Chap. IV).
+One might expect that maceration, even under sterile conditions, especially in case of young specimens, would result in general distention, but this does not always seem to be the case. Edematous areas do, indeed, frequently form locally, as previously illustrated and as generally observed; but swelling due to imbibition, such as occurs when fresh young specimens are placed in formaldehyde, was observed only in a minor degree, as illustrated by No. 2146, shown in figure 187.