Chronic cholecystitis CT: Difference between revisions

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===Images===
===Images===
''' CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, perichol fluid, GB wall thickening)'''
''' CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, pericholicystic fluid, GB wall thickening)'''
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Revision as of 18:27, 4 September 2012

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]

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Overview

The reported sensitivity and specificity of CT scan findings are in the range of 90-95%. CT is more sensitive than ultrasonography in the depiction of pericholecystic inflammatory response and in localizing pericholecystic abscesses, pericholecystic gas, and calculi outside the lumen of the gallbladder.

CT

  • CT scan is more specific than ultrasound.
  • CT scan findings include[1]
    • Gall bladder wall thickening
    • Gall bladder distension
    • Pericholecystic fat density
    • Pericholecystic fluid collection
    • Subserosal edema
    • High attenuation gallbladder bile
  • CT cannot see noncalcified gallbladder calculi, and cannot assess for a Murphy's sign. [2] [3]

Images

CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, pericholicystic fluid, GB wall thickening)

References

  1. Fidler J, Paulson EK, Layfield L (1996). "CT evaluation of acute cholecystitis: findings and usefulness in diagnosis". AJR. American Journal of Roentgenology. 166 (5): 1085–8. PMID 8615248. Retrieved 2012-08-20. Unknown parameter |month= ignored (help)
  2. Shea, JA, Berlin, JA, Escarce, JJ, et al. Revised estimates of diagnostic test sensitivity and specificity in suspected biliary tract disease. Arch Intern Med 1994; 154:2573.
  3. Fink-Bennett, D, Freitas, JE, Ripley, SD, Bree, RL. The sensitivity of hepatobiliary imaging and real time ultrasonography in the detection of acute cholecystitis. Arch Surg 1985; 120:904.

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