What is gallstone ileus?

Updated: May 20, 2021
  • Author: Alan A Bloom, MD; Chief Editor: BS Anand, MD  more...
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In rare instances, a large gallstone may erode through the gallbladder wall into an adjacent viscus, usually the duodenum. Subsequently, the stone may become impacted in the terminal ileum or, less frequently, in the duodenal bulb and/or pylorus, causing gallstone ileus.

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