FIG. 8.

Representative histology in one study subject (A 40 × , B 100 × ). The inset in (A) corresponds to the area demonstrated in the higher magnification view in (B). The vaginal mucosa is covered with a thick stratified glucogenic squamous epithelium with irregular acanthosis and papillae elongation. The basal layer is preserved and there is marked acanthosis and basal cell hyperplasia. There is mild parakeratosis and conservation of the superficial strata. The epithelium is nondysplastic and eutrophic. The chorion is edematous with foci of papillary hemorrhage, with capillary vessels and lymphatic ectasia. No signs of thermal injury are observed. Congestive vaginal mucosa is present.