membrane roll Image

easily more htan the requiste three here Image

Lined by trophoblast not involved in implantation and contain fibrinoid material. The fibrinoid material is strongly positive for fascin, PAS with digestion, collagen IV and fibronectin. Image

looks like thyroid huh Image

Grossly inapparent microscopic cysts or lakes present in the chorion laeve (extra-placental membranes) of the placenta. At least 3 microcysts are required to make the diagnosis.

Significantly associated with:

Pre-eclampsia (29.6% vs 7.8%)

Maternal diabetes mellitus (8.7% vs 5.1%)

Decidual vasculopathy (33.7% vs 14.6%)

Global hypoxic patterns (21.5% vs 11.7%)

Infarction (22.7% vs 14.2%)

Chorangiosis (18% vs 7.8%)

Laminar necrosis of membranes (22.1% vs 9%)

(Stanek)

Based on these associations it has been felt that the cysts are induced by hypoxia.