Verruciform xanthoma of the penis with acantholytic cells.

Verucciform xanthoma is an unusual lesion characterized by verrucous epithelial proliferation accompanied by a prominent replacement of the dermal papillae with foamy histiocytes. We describe a case of verruciform xanthoma on the glans penis. The most striking histopathological finding was the presence of numerous acantholytic cells in the upper layers of the epithelium. We discuss the differential diagnosis with other acantholytic disorders of the genital area and conclude that our findings can be interpreted as an additional example of incidental acantholysis.