Tinea corporis masquerading as subacute cutaneous lupus erythematosus.

Few papers discuss the potential challenge of differentiating dermatophytosis from subacute cutaneous lupus erythematosus. This masquerade, most often manifest on the face, is of both clinical and therapeutic importance. We report a patient whose extensive tinea corporis very closely mimicked SCLE. The threshold for biopsy should be low in cases that exhibit atypical features for either of these entities.