Hamartoma of the bladder.
D004848:Epithelium / Q000473:pathology; D006222:Hamartoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D001743:Urinary Bladder / Q000473:pathology*; D001748:Urinary Bladder Neck Obstruction / Q000209:etiology; D001749:Urinary Bladder Neoplasms / Q000473:pathology*