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Amoebiasis: rectum. Wellcome Collection. CC0 1.0 Universal. Source: Wellcome Collection.
Amoebiasis: rectum
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Amoebiasis: histopathology of the rectum
This is a medium power view of rectal mucosa. It shows an early erosion. The surface epithelium is partially denuded and covered with a necrotic slough (top). The slough contains numerous red-staining amoebae.
Note the lack of acute inflammation within the mucosal crypts. This is a key difference between the histopathology of amoebiasis in contrast to ulcerative colitis and bacterial colitis. H&E stain. See also image W0045950.