A case of squamous cell carcinoma arising within chronic perianal hidradenitis suppurativum is reported. The difficulty in establishing the diagnosis as well as a need for an awareness of this complication is stressed. Five previously reported cases of this complication are noted and the possible etiology of this type of carcinoma is discussed.
Humphrey LJ, Playforth H, Leavell UW. Squamous Cell Carcinoma Arising in Hidradenitis Suppurativum. Arch Dermatol. 1969;100(1):59-62. doi:10.1001/archderm.1969.01610250065015