Posterior urethral abnormalities.
D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003556:Cystitis / Q000209:etiology; D003560:Cysts / Q000150:complications; D006417:Hematuria / Q000209:etiology; D006801:Humans; D008297:Male; D011127:Polyps / Q000150:complications; D014521:Urethra / Q000002:abnormalities*; D014522:Urethral Diseases / Q000209:etiology*; D014523:Urethral Neoplasms / Q000150:complications; D014526:Urethritis / Q000209:etiology; D014555:Urination Disorders / Q000209:etiology