The basal cell nature of the so-called transitional cloacogenic carcinoma of anus as revealed by electron microscopy.
D001005:Anus Neoplasms / Q000473:pathology*; D002280:Basal Cell Carcinoma / Q000473:pathology*; D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000473:pathology