Question:medium
Identify the triangle marked in the image below.
Identify the triangle marked in the image below.
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Bile duct confluence, D2-D3 junction and pancreatic neck-body junction outline where gastrinomas live.
Updated On: Jun 23, 2026
- Koch's triangle
- Gastrinoma triangle
- Hesselbach's triangle
- Sherren's triangle
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: The labelled region corresponds to Passaro's triangle, the surgical landmark that contains roughly 80-90% of gastrinomas seen in Zollinger-Ellison syndrome.
Step 2: Memorise the three corners as biliary, duodenal and pancreatic points: the cystic-common bile duct confluence above, the D2-D3 duodenal junction below, and the pancreatic neck-body junction medially. Linking these three corners outlines the triangle in the picture.
Step 3: The other options describe unrelated anatomy. Koch's is a cardiac conduction landmark, Hesselbach's is an abdominal wall hernia landmark, and Sherren's is a clinical appendicitis sign. Only the hepato-pancreato-biliary corners define the structure asked about.
\[\boxed{\text{Gastrinoma triangle}}\]
Step 2: Memorise the three corners as biliary, duodenal and pancreatic points: the cystic-common bile duct confluence above, the D2-D3 duodenal junction below, and the pancreatic neck-body junction medially. Linking these three corners outlines the triangle in the picture.
Step 3: The other options describe unrelated anatomy. Koch's is a cardiac conduction landmark, Hesselbach's is an abdominal wall hernia landmark, and Sherren's is a clinical appendicitis sign. Only the hepato-pancreato-biliary corners define the structure asked about.
\[\boxed{\text{Gastrinoma triangle}}\]
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