File:LattaTollman1937 plate01.jpg

Plate 1

2 A portion of the maternal mucosa lying immediately outside the implantation cavity, showing invasion by deeply staining strands of syncytial trophoblast, the nuclei of which are mostly quite pycnotic. One large trophoblastie mass is shown which contains several typical nuclei. There are no indications of any histolytic activity on the part of this trophoblast. Note evidences of degeneration of connective tissue cells and polymorphonuelear infiltration. X 600.

3 The lumen of a gland being invaded by a strand of syncytial trophoblast. The disorganization and piling up of the epithelial nuclei is quite apparent. X 600.

4 This shows the invation and partial lining of a maternal blood sinus in the marginal decidua by syncytial trophoblast. Decidua above, trophoblast and implantation cavity below. X 78.

5 Cellular detail of the cytotrophoblast and the syncytial trophoblast (x) in the basal chorionic epithelium. Note the distinct cell membranes of the eyto~ trophoblast. Compare the nuclear appearances in the two layers. X 1340.

6 Junction of a villus with the basal chorion. In the covering of the villus many of the nuclei in the syncytial layer closely resemble those of the cytotrophoblast. The mesodermal core of the villus has been partially retracted. X 600.

Links: fig 1 | fig 2 | fig 3 | fig 4 | fig 5 | fig 6 | fig 7 | fig 8 | fig 9 | fig 10 | fig 11 | fig 12 | fig 13 | fig 14 | fig 15 | plate 1 | plate 2 | plate 3 | 1937 Latta Tollman | Historic Papers

Reference

Latta JS. and Tollman JP. An early stage of human implantation. (1937) Anat. Rec. 69(4): 443-463.

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