An unusual case of squamous cell carcinoma in situ is reported in a 22-year-old Yeminite man. It was characterized by extensive pigmentation, bilateral groin involvement, and multicentric origin.
Lloyd KM. Multicentric Pigmented Bowen's Disease of the Groin. Arch Dermatol. 1970;101(1):48–51. doi:10.1001/archderm.1970.04000010050007
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