gas·​tri·​no·​ma ˌgas-trə-ˈnō-mə How to pronounce gastrinoma (audio)
plural gastrinomas also gastrinomata -mət-ə How to pronounce gastrinoma (audio)
: a tumor that often involves blood vessels, usually occurs in the pancreas or the wall of the duodenum, and produces excessive amounts of gastrin which stimulates gastric-acid secretion and consequent formation of ulcers especially in the duodenum and the jejunum see zollinger-ellison syndrome

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Cite this Entry

“Gastrinoma.” Medical Dictionary, Merriam-Webster, Accessed 8 Feb. 2023.

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