Systemic lupus erythematosus with multiple myeloma.

A 44-year-old white man presented with an erythemato-squamous rash in the supra-orbital and preauricular regions of the face. The diagnosis systemic lupus erythematosus was confirmed by histopathology, immunofluorescence (circulating antinuclear antibodies and a positive lupus band test), and by immunoelectron microscopy. Further examinations disclosed a multiple myeloma of the IgG type without cutaneous involvement. The coexistence of these two disorders has not been reported previously.