MC site of gastrinoma:-
Agastrinomais a gastrin-producing tumor usually located in the pancreas or the duodenal wall. Gastric acid hypersecretion and aggressive, refractory peptic ulceration result (Zollinger-Ellison syndrome).Diagnosisis by measuring serum gastrin levels. Treatment is proton pump inhibitors and surgical removal.
Duodenum
Pancreas
Stomach
Colon
Stomach & Duodenum