Gastrinoma triangle

Last revised by Daniel J Bell on 25 Dec 2019

The gastrinoma triangle, also known as Passaro's triangle, is an anatomical area in the abdomen, from where the majority (90%) of gastrinomas are thought to arise. 

Gross anatomy


The triangle is formed by joining the following three points:

History and etymology

Edward Peter Passaro (1930-2017) was an American GI surgeon, who described his eponymous triangle in 1984 2.

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