title: [Malformations of Wolffian duct derived male genital organs (epididymis, vas deferens, seminal vesicules, ejaculatory ducts)].
abstract: OBJECTIVE
  To analyse embryological phenomena, in order to define a practical approach to management.
  
  
  METHODS
  The authors reviewed the files of eight boys with an abnormality of Wolffian duct derived genital organs, consisting of three cases of vas deferens agenesis, two of which were accompanied by homolateral renal agenesis, one case of ectopic vas deferens with contralateral renal agenesis, three cases of duplicated vas deferens and one congenital seminal vesicle cyst with renal agenesis.
  
  
  CONCLUSIONS
  Congenital malformations of the epididymis consist of cysts and agenesis or partial atresia. Cysts essentially raise a problem of differential diagnosis. Treatment is only required in the case of severe discomfort. Vas deferens agenesis is the commonest lesion, an incidental finding in children. An experimental treatment is proposed in adults. Duplications, interdeferential communications and deferentomegaly are much rarer lesions. Seminal vesicle cysts are well visualized by transrectal ultrasonography and should be treated surgically. Lastly, ejaculatory ducts may present urethroseminal reflux or may be ectopic.
  
  
  CONCLUSIONS
  The possibility of absent or ectopic vas deferens should be considered in the case of unilateral renal agenesis. Vas deferens agenesis justifies examination of the contralateral side and investigation to exclude renal agenesis. Congenital cysts of the epididymis only require surgery when they are symptomatic. The presence of ipsilateral renal agenesis should be investigated in the case of cystic dilatation of the seminal vesicle.
authors.affiliation: Service de Chirurgie pédiatrique, Hôpital Edouard-Herriot, Lyon, France.
authors.forename: J L
authors.initials: JL
authors.lastname: Mege
authors.forename: E
authors.initials: E
authors.lastname: Sabatier-Laval
authors.forename: P Y
authors.initials: PY
authors.lastname: Mure
authors.forename: B
authors.initials: B
authors.lastname: Vargas
authors.forename: R
authors.initials: R
authors.lastname: Dubois
authors.forename: P
authors.initials: P
authors.lastname: Takvorian
authors.forename: H
authors.initials: H
authors.lastname: Dodat
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D004543:Ejaculatory Ducts / Q000002:abnormalities* / Q000196:embryology; D004822:Epididymis / Q000002:abnormalities* / Q000196:embryology; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D012669:Seminal Vesicles / Q000002:abnormalities* / Q000196:embryology; D014649:Vas Deferens / Q000002:abnormalities* / Q000196:embryology