Carcinoma cuniculatum of the buttock. An unusual case with an inverted growth.
A rare case of carcinoma cuniculatum involving the buttock in a 56-year-old male is presented. This case is uncommon in that the tumor was largely subcutaneous, while the usual carcinoma cuniculatum is an exophytic growth. Although carcinoma cuniculatum has a wide clinical and histological spectrum, to our knowledge there has been only 1 case with similar histological features, located in a pilonidal sinus, and another case located on the buttock.
Department of Pathology, Federal University, Santa Maria, Rio Grande do Sul, Brazil.
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D002081:Buttocks; D002291:Carcinoma, Papillary / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology*