Rigler triad consists of three findings seen in gallstone ileus:
- pneumobilia
- small bowel obstruction
- ectopic calcified gallstone, usually in the right iliac fossa
History and etymology
It is named after Leo George Rigler, American radiologist (1896-1979) 1.
Practical points
Rigler triad should not be confused with Rigler sign, the Rigler notch sign, or Hoffman-Rigler sign.
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