Successful treatment of pyoderma gangrenosum with concomitant immunoglobulin A nephropathy: A case report and review of literature.

Pyoderma gangrenosum (PG) is an uncommon ulcerative cutaneous condition of an unknown etiology and is often associated with immune diseases. However, PG rarely shows visceral involvement, especially in the kidney. A 20-year-old female presented with pedal edema and skin ulceration of both lower limbs. The skin lesion began as an erythematous plaque and then became a blister. She also complained of abdominal distension and a decreasing urine volume. Laboratory data showed high proteinuria, hypoalbuminemia and hyperlipidemia. Her skin and kidney were biopsied. The pathological results indicated PG and immunoglobulin A (IgA) nephropathy. The patient was finally cured with prednisolone in combination with cyclosporine A (CsA).