Gastrinoma (Passaro’s) triangle

Boundaries of Gastrinoma Triangle

It is an imaginary triangle formed by 3 points in upper abdomen:

  1. Apex: Cystic duct-CBD junction
  2. Inferior point: 2nd part duodenum-3rd part duodenum junction
  3. Left lateral point: Pancreatic neck-body junction

gastrinoma triangle

This area is located to the right of Superior Mesenteric Artery (SMA) i.e. Proximal duodenum and head of pancreas.

Importance of Gastrinoma Triangle

1. Tumor localization: 60-90% gastrinomas arise within the Gastrinoma triangle. Gastrinoma is more common in duodenum than in pancreas.

2. Hepatic metastases: Gastrinomas that arise from the tail of pancreas have higher rate of hepatic metastases compared to that which arises in gastrinoma triangle.

One thought on “Gastrinoma (Passaro’s) triangle

  1. cost of full treatment of gas and acid treatment i suffering from last 35 years . i am now 56

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