File:LattaTollman1937 plate02.jpg

Plate 2

7 Cell columns continuing from the terminal ends of chorionic villi and uniting together peripherally. The mesodermal cores of the villi have been retracted in preparation. X 78.

8 Tip of a, chorionic villus and the proximal end of a cell column in continuity with it. The cells of the cytotrophoblast clothing the villus are identical with those comprising this portion of the cell column. Villus core (X). X 600.

9 The character of the cells making up the column somewhat peripheral to region illustrated in figure 8. The cytological characteristics shown here are indicative of transition between cytotrophoblast and syncytium. The appearance of spaces due to the degeneration of ecrtain cells is clearly indicated. x 600.

10 Syncytial trophoblast from the periphery of the implantation cavity. Note the great variation in the concentration of nuclei in the protoplasmic mass. X 600.

11 Syncytial trophoblastic masses projecting into the intervillous space. In the lower mass the nuclei are shrunken and pycnotic and large vacuoles are present. Projecting from the mass at the upper right is a non-nucleated. fragment (x) containing numerous deeply staining granules. Much of the debris in the intervillous space appears as disintegrating syncytial tisue. 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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