Hydronephrosis resulting from obstruction of the urethra by a polyp of the verumontanum.
D006801:Humans; D006869:Hydronephrosis / Q000209:etiology*; D008297:Male; D008499:Medical Records; D011127:Polyps; D011467:Prostate; D014521:Urethra; D014523:Urethral Neoplasms
HYDRONEPHROSIS/etiology; POLYPI/case reports; URETHRA/neoplasms