Image of the Week: See an enterotomy in action

<a href="" target="_blank">Click here</a> to view a series of five images that demonstrates the step-by-step removal of a gallstone in a patient with gallstone ileus.
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This patient was discovered to have gallstone ileus, a rare complication of cholelithiasis that has a high rate of mortality. An unusual process must occur in order to cause this complication.

Gallstones of this size (typically >2 cm) can enter the bowel following the development of a fistula between the gallbladder and the small bowel. These fistulas can be asymptomatic, and the first signs of illness are usually related to intestinal obstruction.

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