Ganglioneuroblastoma and urticaria by physical agents.

A case is reported of ganglioneuroblastoma in a 5-year-old boy, who had urticaria syndrome by physical agents (water, light, cold) in the last 2 years, associated with an apparent splenomegaly. A sonography and a CT scan showed a large cystic mass with calcification near the left kidney. After surgery, it was possible to diagnose left adrenal ganglioneuroblastoma (Evans's first stage). Complete regression of urticaria syndrome was obtained after mass removal.