title: Sonographic detection of gallbladder duplication: two cases discovered in utero.
abstract: OBJECTIVE
  To report the in utero diagnosis of a duplicated gallbladder.
  
  
  METHODS
  Obstetric sonography was performed at 2 separate referral centers. A comprehensive level 11 examination was performed at each center.
  
  
  RESULTS
  In both cases, a duplicated gallbladder was detected in utero without the presence of other anatomic abnormalities.
  
  
  CONCLUSIONS
  Gallbladder duplication, although uncommon, should be considered when an additional cystic structure is seen in the right upper quadrant. Recognition of the presence of a duplicated gallbladder, a relatively benign condition, prevents invoking a more serious diagnosis, such as a choledochal or duodenal duplication cyst.
authors.affiliation: Department of Radiology, University of California, 505 Parnassus Ave, Box 0628, San Francisco, CA 94143, USA.
authors.forename: Lisa L
authors.initials: LL
authors.lastname: Kinoshita
authors.forename: Peter W
authors.initials: PW
authors.lastname: Callen
authors.forename: Roy A
authors.initials: RA
authors.lastname: Filly
authors.forename: Lyndon M
authors.initials: LM
authors.lastname: Hill
mesh_terms: D000328:Adult; D005260:Female; D005704:Gallbladder / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D016216:Ultrasonography, Prenatal