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Mnemonics, Simplified Concepts & Thoughts

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gastrinoma triangle

Gastrinoma (Passaro’s) triangle

Epomedicine, Feb 17, 2017

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.

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PGMEE, MRCS, USMLE, MBBS, MD/MS AnatomyEndocrine systemGeneral SurgeryInternal medicine

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Comment

  1. vijay says:
    Jan 14, 2018 at 5:40 am

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

    Reply

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Epomedicine. Gastrinoma (Passaro’s) triangle [Internet]. Epomedicine; 2017 Feb 17 [cited 2026 May 21]. Available from: https://epomedicine.com/medical-students/gastrinoma-passaros-triangle/.

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