title: Incidental pelvic mass identified during ultrasound-guided transrectal needle biopsy of the prostate.
abstract: OBJECTIVE
  Herein we report an additional case of a seminal vesicle cyst with ipsilateral renal agenesis and ectopic ureter in an asymptomatic individual with a normal examination.
  
  
  METHODS
  We review the literature on retrovesical mas regarding the embryology, evaluation, management and treatment..
  
  
  CONCLUSIONS
  Seminal vesicle cysts with ipsilateral renal agenesis and  ectopic ureter may appear as an incidental mass by transrectal ultrasound.
authors.affiliation: Department of Urology, Mayo Clinic, 200 First Street SW Rochester, Minnesota 55905, USA.
authors.forename: Steven G
authors.initials: SG
authors.lastname: Roberts
authors.forename: Jose M
authors.initials: JM
authors.lastname: Garcia Mediero
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Segura
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Rivas
authors.forename: Jesús
authors.initials: J
authors.lastname: García Alonso
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D001707:Biopsy, Needle; D003560:Cysts / Q000150:complications* / Q000000981:diagnostic imaging*; D005832:Genital Diseases, Male / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012669:Seminal Vesicles; D014463:Ultrasonography / Q000379:methods; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging*