|Normal Chorionic Plate|
|General Gross Description|
Fetal surface of the placenta with a glistening gray surface
Umbilical cord inserts into the chorionic plate
Contains fetal arteries and veins with arteries coursing over veins
Stem villi originate from the underside of the chorionic plate.
|General Microscopic Description|
Surface covered by amniotic epithelium lying on a compact connective tissue layer on top of the amniotic mesoderm
Spongy layer separating amniotic from chorionic mesoderm
Bottom of the chorionic mesoderm contains trophoblasts lying over subchorionic (Langhans) fibrin or fibrinoid
Fetal vessels are located in the chorionic plate; differentiating between fetal arteries and veins histologically is not easily accomplished
Stem villi depend from chorionic plate
Benirschke K, Kaufmann P. Pathology of the human placenta, 3rd ed. New York: Springer-Verlag, 1995, pp. 214-218.
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|Normal Chorionic Plate
||Synopsis by: Melinda Sanders M.D. (T88210M00100)