title: Posttraumatic torsion of accessory lobe of the liver and the gallbladder.
abstract: Torsion of an accessory lobe of the liver and of the gallbladder is a rare etiology for acute abdominal pain in children and infants. We report a case of an 8-year-old girl who was admitted with acute epigastric pain and vomiting, after her brother had jumped on her back. Physical examination revealed an afebrile child with a nontender right upper quadrant (RUQ) mass. Color Doppler ultrasound and contrast-enhanced CT demonstrated a heterogeneous, avascular mass with displacement of a thickened-wall gallbladder. A contorted, congested accessory lobe of the liver and the gallbladder were resected at laparotomy. Imaging and operative findings are presented and a differential diagnosis is discussed in order to increase awareness of this rare condition.
authors.affiliation: Department of Diagnostic Imaging, The Hospital for Sick Children and the University of Toronto, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8.
authors.forename: B Z
authors.initials: BZ
authors.lastname: Koplewitz
authors.forename: D E
authors.initials: DE
authors.lastname: Manson
authors.forename: S H
authors.initials: SH
authors.lastname: Ein
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D019567:Back Injuries / Q000150:complications* / Q000209:etiology; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D005705:Gallbladder Diseases / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis / Q000209:etiology*; D014102:Torsion Abnormality