Lupus erythematosus tumidus of the scalp masquerading as alopecia areata.

Lupus erythematosus tumidus (LET) is a unique subset of chronic cutaneous lupus erythematosus (CCLE) that generally presents as urticarialike papules and plaques with induration and erythema on the face, trunk, and upper extremities. Lesions rarely present on the scalp or below the waist. We report a unique case of LET on the scalp of a woman that presented clinically as alopecia areata. Resistance to the standard treatment for alopecia areata prompted a biopsy that proved the diagnosis.