Narrowings of the male urethra caused by contractions or spasm of the bulbocavernosus muscle: cysto-urethrographic observations.
D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009132:Muscles; D010413:Penis; D013035:Spasm / Q000150:complications* / Q000000981:diagnostic imaging; D014521:Urethra / Q000502:physiology*; D014525:Urethral Stricture / Q000000981:diagnostic imaging*; D014555:Urination Disorders / Q000000981:diagnostic imaging / Q000209:etiology*; D014567:Urography