Isolated perianal verrucoid familial benign chronic pemphigus.

A case is described in which verrucous perianal lesions of familial benign chronic pemphigus (Hailey-Hailey disease) were initially mistaken for condylomata acuminata. The verrucoid, atypical form of the disease has only relatively recently been recognized and perianal lesions may easily be mistaken as manifestations of other conditions.