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Key Image

Contrast enhanced CT of the abdomen at the level of the pancreas

Key Findings

Axial contrast enhanced CT of the upper abdomen demonstrates cholelithiasis (yellow arrow) with gallbladder wall thickening, enhancement and pericholecystic fluid (blue arrow). Perihepatic ascites present (red arrow).

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Diagnosis

Acute Cholecystitis

Discussion

CT findings of cholecystitis include:
- distended gallbladder
- gallbladder wall thickness >3 mm
- increased gallbladder wall attenuation
- adjacent liver enhancement due to hyperemia
- pericholecystic fat stranding
- pericholecystic fluid

See case #8 and #9 for details regarding the ultrasound and nuclear medicine findings in this case.

References / Resources

Additional Information:

1. Dahnert*: 713
2. Primer*: 165-166
3. Related Article:

   O'Connor, OJ. "Imaging of Cholecystitis." April 2011 AJR 196:4, W367-W374.

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