A type of neuroendocrine tumour (which starts in cells of the neuroendocrine system) that develops in the stomach, duodenum (the first part of the small intestine) or pancreas. It releases gastrin (a hormone), which can lead to too much stomach acid and ulcers in the stomach and small intestine.

Gastrinomas can be non-cancerous (benign) or cancerous (malignant).

Medical disclaimer

The information that the Canadian Cancer Society provides does not replace your relationship with your doctor. The information is for your general use, so be sure to talk to a qualified healthcare professional before making medical decisions or if you have questions about your health.

We do our best to make sure that the information we provide is accurate and reliable but cannot guarantee that it is error-free or complete.

The Canadian Cancer Society is not responsible for the quality of the information or services provided by other organizations and mentioned on, nor do we endorse any service, product, treatment or therapy.

1-888-939-3333 | | © 2024 Canadian Cancer Society