CHORUS - home page

CHORUS

Collaborative Hypertext of Radiology

Liver and biliary system

About CHORUS
Disclaimer
Copyright

 

acute cholecystitis

  • 80-95% secondary to cystic duct obstruction by gallstone
  • 5-6th decade; 75% female

    ultrasound (sensitivity 85-95%; specificity 64-100%):
  • GB wall thickening (>3mm)
  • "halo sign" = GB wall lucency (in 70%)
  • GB hydrops = AP diameter >5cm
  • sonographic Murphy sign (85%)
  • pericholecystic fluid

  • hepatobiliary scan (95% accuracy):
    • nonvisualization of gallbladder

      complications:
    1. gangrene
      • irregular wall (ulcers, intraluminal hemmorhage, necrosis)
      • hyperechoic foci within GB wall (microabscesses in Rokitansky-Aschoff sinuses)
    2. perforation (5-10%): most commonly in fundus
    3. empyema: gravity dependent debris

    Yong H. Hahn, MD  -  2 February 1995
    Last updated:  1 October 2013


     

    Related CHORUS documents:
    acalculous cholecystitis
    diffuse gallbladder wall thickening
    chronic cholecystitis
    hepatobiliary imaging (Tc-HIDA)
    gallstones
    acute pancreatitis

     

    Copyright © 2013, Charles E. Kahn, Jr.