Advanced
Technical
IVT
gastrinoma triangle
An anatomical region where most pancreatic gastrinomas are located, bounded by specific anatomical landmarks.
Full Definition
The gastrinoma triangle is a well-defined anatomical region that encompasses the most common locations for pancreatic gastrinomas in Zollinger-Ellison syndrome. The triangle is bounded by the confluence of the cystic and common bile ducts superiorly, the junction of the second and third portions of the duodenum inferiorly, and the neck and body of the pancreas medially. Understanding this anatomical concept is crucial for surgical planning and localization studies in patients with suspected gastrinomas.
Usage
Usage note: Named after Passaro, who first described this anatomical relationship.
In Context
- "The EUS revealed a small lesion within the gastrinoma triangle consistent with the patient's biochemical findings." — Endoscopy report
- "Surgical exploration focused on the gastrinoma triangle to identify the source of excess gastrin production." — Operative note
Also known as
Passaro triangle
Don't confuse with
Calot's triangle
hepatocystic triangle