title: Unusual benign bladder tumor of Brunn nest origin.
abstract: An unusual bladder tumor consisting of proliferating benign Brunn nests is described. The tumor occurred in a forty-five-year-old man who presented with hematuria. The tumor recurred in the same location one and one-half years later and again caused hematuria. The tumor is distinguished from inverted papilloma of the bladder.
mesh_terms: D006417:Hematuria / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000150:complications / Q000473:pathology*; D014513:Ureter / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000150:complications / Q000473:pathology*