Squamous cell carcinomas arising in discoid lupus erythematosus scars: unusual occurrence in an African-American and in a sun-protected area.

Squamous cell carcinoma is a known and rare complication of long-standing discoid lupus erythematosus. Most cases have been reported in sun-exposed skin of whites. We report 2 unusual cases of squamous cell carcinoma arising in discoid lupus erythematosus scars: one in a sun-protected area of a white patient and a second in an African-American patient.