Chronic cholecystitis CT: Difference between revisions
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==CT Scan== | ==CT Scan== | ||
* CT scan is more specific than ultrasound. | |||
* CT scan findings include | |||
** Gall bladder distension | |||
** Gall bladder thickening | |||
** 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. <ref name="Shea">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.</ref> <ref name="Fink">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.</ref> | CT cannot see noncalcified gallbladder calculi, and cannot assess for a Murphy's sign. <ref name="Shea">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.</ref> <ref name="Fink">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.</ref> | ||
Revision as of 23:04, 20 August 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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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 Scan
- CT scan is more specific than ultrasound.
- CT scan findings include
- Gall bladder distension
- Gall bladder thickening
- 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. [1] [2]
Patient #1: CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, perichol fluid, GB wall thickening)
References
- ↑ 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.
- ↑ 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.