title: Bladder involvement in hereditary angioedema.
abstract: We report on a patient with bladder involvement in hereditary angioedema. The patient had documented hereditary angioedema with episodes involving the skin and gastrointestinal tract. He presented with gross hematuria at age 36 and had also had gross hematuria at ages 16 and 20. Cytoscopic examination revealed raised hemorrhagic lesions in the vesical walls. Biopsy specimens of the lesions showed normal mucosa with submucosal edema. The lesions resolved when the angioedema was better controlled.
mesh_terms: D000328:Adult; D000799:Angioedema / Q000150:complications*; D006417:Hematuria / Q000209:etiology*; D006801:Humans; D008297:Male; D001745:Urinary Bladder Diseases / Q000209:etiology*