title: Gallbladder injury secondary to blunt trauma: CT findings.
abstract: OBJECTIVE
  Our objective was to determine CT findings of gallbladder injury secondary to blunt trauma.
  
  
  METHODS
  Computed tomography scans and medical records of seven patients diagnosed with gallbladder injury secondary to blunt trauma, including six surgically confirmed cases and one presumptive diagnosis based on CT findings, were reviewed retrospectively to delineate CT findings associated with gallbladder injury. Evaluation of CT scans included assessment of gallbladder distention, wall thickness and contour, intraluminal contents, presence of pericholecystic fluid, and associated injuries. Data obtained included age, gender, mechanism of injury, surgical and pathologic findings when available, treatment, morbidity, and mortality.
  
  
  RESULTS
  Four patients had gallbladder contusions and three had either gallbladder laceration, partial avulsion, or intraluminal hemorrhage. The spectrum of CT findings included pericholecystic fluid (seven), ill defined contour of the gallbladder wall (four), high density intraluminal hemorrhage (four), mass effect on the duodenum (three), and gallbladder collapse (one). No combination of findings was specific for the type of injury. The most common associated injuries were pericholecystic liver lacerations and duodenal hematoma or perforation.
  
  
  CONCLUSIONS
  The CT finding of an ill defined contour of the gallbladder wall, a collapsed lumen, or high density intraluminal hemorrhage, especially in the presence of pericholecystic fluid, strongly suggests primary gallbladder injury.
authors.affiliation: Department of Radiology and Radiological Sciences, Vanderbilt University Hospital, Nashville, Tennessee.
authors.forename: R E
authors.initials: RE
authors.lastname: Erb
authors.forename: S E
authors.initials: SE
authors.lastname: Mirvis
authors.forename: K
authors.initials: K
authors.lastname: Shanmuganathan
mesh_terms: D000328:Adult; D002765:Cholecystography; D003288:Contusions / Q000000981:diagnostic imaging; D004386:Duodenum / Q000000981:diagnostic imaging / Q000293:injuries; D005122:Exudates and Transudates / Q000000981:diagnostic imaging; D005260:Female; D005500:Follow-Up Studies; D005704:Gallbladder / Q000293:injuries*; D006406:Hematoma / Q000000981:diagnostic imaging; D006431:Hemobilia / Q000000981:diagnostic imaging; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging / Q000293:injuries; D008297:Male; D012189:Retrospective Studies; D012421:Rupture; D014057:Tomography, X-Ray Computed; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*