title: [Gallbladder agenesis, a rare congenital disorder].
abstract: METHODS
  A 51-year-old woman presented with right upper abdominal discomfort for three weeks. Her medical history revealed a lower abdominal gynecological laparoscopy and an ileocaecal resection 7 years ago.
  
  
  METHODS
  Blood samples including liver enzymes were within normal limits. An upper abdominal ultrasound failed to reveal a gallbladder. An MRI with MR-cholangiography confirmed the abscence of a gallbladder, thus the diagnosis of a gallbladder agenesis.
  
  
  METHODS
  The patient was informed about the benign nature of her diagnosis and was discharged. The right upper abdominal discomfort was mild and untypical, and most probably not caused by the gallbladder agenesis.
  
  
  CONCLUSIONS
  Gallbladder agenesis is rare. The congenital disorder has to be taken into account if no gallbladder can be found during imaging or surgery. Sonography is not the adequate method for diagnosing gallbladder agenesis.
authors.affiliation: Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsklinik Düsseldorf. Peter.ambe@med.uni-duesseldorf.de
authors.forename: P
authors.initials: P
authors.lastname: Ambe
authors.forename: S A
authors.initials: SA
authors.lastname: Weber
mesh_terms: D015746:Abdominal Pain; D049448:Cholangiopancreatography, Magnetic Resonance; D000013:Congenital Abnormalities / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D005704:Gallbladder / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014463:Ultrasonography