Fig. 1

Histopathological findings in the placenta of a patient with fetal demise. A Severe chorioamnionitis shown in the chorion (asterisk), subchorionic fibrin (arrowhead) and decidua (arrow); H&E stain, 10 × magnification, scale bar: 100 µm; B Inflammatory infiltration in the fetal membranes, which consists of plasma cells (arrowhead) and lymphocytes (arrow); H&E stain, 40 × magnification; scale bar: 20 µm; C, Arrows show intervillous fibrin deposition and arrowheads, villitis; H&E stain, 10 × magnification, scale bar: 100 µm; D Villitis with infiltration of plasma cells (arrows), 20 × magnification; scale bar: 50 µm; E Infiltration of neutrophils (arrowhead) and lymphocytes (arrow) in the decidua basalis; H&E stain, 40 × magnification, scale bar: 20 µm; F Thrombi in stem villi (arrows); H&E stain, 10 × magnification, scale bar: 100 µm. Abbreviations: H&E: hematoxylin and eosin