Erythema Gyratum Repens an Immunological Paraneoplastic Dermatosis.

The authors present a patient with erythema gyratum repens who had a bronchogenic carcinoma. Autoantibodies and complement at the basement membrane zone of the skin was found which suggest that erythema gyratum repens may have an immunological pathogenesis but the nature of the antigen should be further characterised.