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Carcinoma cuniculatum of the buttock. An unusual case with an inverted growth
1Department of Pathology, Federal University, Santa Maria, Rio Grande do Sul, Brazil.
Abstract:
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.

