Synonyms: GNET | Gastric NET | Gastric neuroendocrine tumor | NET of stomach
A rare subtype of neuroendocrine neoplasm arising from enterochromaffin-like cells in the stomach with a variable clinical presentation disease course and prognosis depending on the disease type and histological grade. Most patients are asymptomatic with diagnosis usually occurring incidentally during gastroscopy however symptoms of dyspepsia anemia pain weight loss and gastrointestinal bleeding can be observed. Association with Zollinger-Ellison syndrome and multiple endocrine neoplasia type I has been reported.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version February 2026
Newly diagnosed with
Neuroendocrine tumor of stomach?
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Advocacy Organizations
Neuroendocrine Cancer Awareness Network Inc
The Neuroendocrine Cancer Awareness Network (NCAN) is a non-profit organization dedicated to raising awareness of Neuroendocrine Cancer, providing support for caregivers and people with NETs, and funding for NET cancer research. Since 2003, it has been our mission, or as we like to say, our passion, to educate and support the NET community as a whole. That’s our thing.
No Stomach For Cancer
Our mission is to support research and unite the caring power of people worldwide affected by stomach cancer. The organization focuses on advancing awareness and education about stomach cancer, Hereditary Diffuse Gastric Cancer, provides a support network for affected families, and supports research and education efforts for screening, early detection and prevention.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.