title: CT findings of acute cholecystitis and its complications.
abstract: OBJECTIVE
  The purpose of this article is to describe and illustrate the CT findings of acute cholecystitis and its complications.
  
  
  CONCLUSIONS
  CT findings suggesting acute cholecystitis should be interpreted with caution and should probably serve as justification for further investigation with abdominal ultrasound. CT has a relatively high negative predictive value, and acute cholecystitis is unlikely in the setting of a negative CT. Complications of acute cholecystitis have a characteristic CT appearance and include necrosis, perforation, abscess formation, intraluminal hemorrhage, and wall emphysema.
authors.affiliation: Department of Radiology, University of Utah, Salt Lake City, UT 84132-2140, USA. jonathan.shakespear@hsc.utah.edu
authors.forename: Jonathan S
authors.initials: JS
authors.lastname: Shakespear
authors.forename: Akram M
authors.initials: AM
authors.lastname: Shaaban
authors.forename: Maryam
authors.initials: M
authors.lastname: Rezvani
mesh_terms: D000006:Abdomen, Acute / Q000000981:diagnostic imaging*; D000038:Abscess / Q000000981:diagnostic imaging / Q000209:etiology; D041881:Cholecystitis, Acute / Q000150:complications / Q000000981:diagnostic imaging*; D004646:Emphysema / Q000000981:diagnostic imaging / Q000209:etiology; D006470:Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D009336:Necrosis; D014057:Tomography, X-Ray Computed / Q000379:methods*