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Small bowel obstruction with calcified gallstone within the small bowel.
Gallstone ileus occurs in setting of chronic cholecystitis or following multiple ERCPs. Risk increases with age.
Classical findings: small bowel obstruction; gas in biliary tree; large ectopic gallstone (Rigler triad). Other findings: collapsed gallbladder; gas in gallbladder.
Credit: Dr Marina-Portia Anthony.
- Federle M. Jeffrey R. Desser T. Diagnostic Imaging: Abdomen 2004. Amirsys. Canada.