title: Congenital Megaureter Presenting in an Adult as a Vaginal Wall Cyst.
abstract: BACKGROUND
  Vaginal cysts are a common finding. The differential diagnosis includes epidermal inclusion, Bartholin gland, Gartner duct, and Skene gland cysts and Müllerian anomalies. Rarely, leiomyomas, cancers, or ectopic ureters or megaureters are found.
  
  
  METHODS
  A 31-year-old woman, gravida 3 para 3, presented with a 12-year history of intermittent abdominal pain and involuntary loss of urine. She was diagnosed with ectopic vaginal megaureter after evaluation and subsequently underwent a nephroureterectomy with a marsupialized distal ureter. She remains asymptomatic.
  
  
  CONCLUSIONS
  Consideration of a rare diagnosis such as an ectopic ureter is important when patients repeatedly present with involuntary urinary incontinence in conjunction with a vaginal cyst and an otherwise negative evaluation. Using magnetic resonance imaging can be useful to assess urinary tract involvement, particularly in patients with known urinary tract malformations.
authors.affiliation: Uniformed Services University of the Health Sciences, and Walter Reed National Military Medical Center, Bethesda, Maryland.
authors.forename: Allison A
authors.initials: AA
authors.lastname: Eubanks
authors.forename: Hector M
authors.initials: HM
authors.lastname: Gonzalez
mesh_terms: D000328:Adult; D000013:Congenital Abnormalities / Q000175:diagnosis / Q000000981:diagnostic imaging; D003560:Cysts / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D014057:Tomography, X-Ray Computed; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D013520:Urologic Surgical Procedures; D014623:Vaginal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology