Fig. 4: Gross and microscopic examination of the placenta. | Nature Communications

Fig. 4: Gross and microscopic examination of the placenta.

From: Transplacental transmission of SARS-CoV-2 infection

Fig. 4

a The macroscopic lesions of perivillous fibrin deposition with infarction, as irregular strands of pale yellow-white induration (arrow). b Microscopic lesions of intervillositis characterized by an infiltrate of the intervillous spaces made of neutrophils and histiocytes (arrow) (HES stain, original magnification ×400). c The intervillositis with several CD68-positive histiocytes (arrow); neutrophils are negative with this anti-macrophage antibody (anti-CD68 immunohistochemistry, original magnification ×400).

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