MOST COMMON SITE FOR IMPACTION OF GALL STONES IN GALL STONE ILEUS IS

• A. 1st part of duodenum
• B. 2nd part of duodenum
• C. Terminal ileum ✓
• D. Colon

Gallstone ileus is a rare condition where a gallstone becomes impacted in the gastrointestinal tract, causing obstruction. The most common site for impaction of gallstones in gallstone ileus is the terminal ileum. The gallstone typically travels through the biliary system and enters the small intestine, where it can become lodged in the terminal ileum due to its relatively narrow diameter compared to other parts of the small intestine.

The terminal ileum is the last part of the small intestine before it connects to the large intestine (colon). Its location makes it a common site for gallstones to become stuck and cause obstruction. When a gallstone becomes impacted in the terminal ileum, it can lead to symptoms such as abdominal pain, nausea, vomiting, and bowel obstruction.

In cases of gallstone ileus, surgical intervention is often necessary to remove the obstructing stone and relieve the obstruction. The specific surgical approach may vary depending on the size and location of the gallstone within the gastrointestinal tract.

Overall, the terminal ileum is considered the most common site for impaction of gallstones in cases of gallstone ileus.