Passaro's triangle or gastrinoma triangle is a presumptive region in the abdomen between three points: The importance of the triangle is because it is known as the source of origin of most gastrinomas.
[3][4] However, primary gastrinomas can also occur in the liver or extrahepatic bile ducts, commonly with metastasis to the local lymph nodes.
[5] The appellation is due to Edward Peter Passaro, an American surgeon, who explained it for the first time.
[3] This anatomy article is a stub.
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