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Squamous cell carcinoma arising in lesions of discoid lupus erythematosus in black persons.

Squamous cell carcinoma developing in lesions of discoid lupus erythematosus is rare. This article describes two patients, one with a carcinoma of the scalp and one with carcinoma of the upper lip. A review of the literature on squamous cell carcionoma in black persons as well as squamous cell carcinoma of the upper lip is presented.