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Connect & DownloadHereditary gastric cancer refers to the occurrence of gastric cancer in a familial context and is described as two or more cases of gastric cancer in first or second degree relatives with at least one case diagnosed before the age of 50. Familial clustering is observed in 10% of all cases of gastric cancer, and includes hereditary diffuse gastric cancer (early onset diffuse-type gastric cancer), gastric adenocarcinoma and proximal polyposis of the stomach and familial intestinal gastric cancer (familial clustering of intestinal type gastric adenocarcinoma). Hereditary gastric cancer can also occur in other hereditary cancer syndromes such as Lynch syndrome, Li-Fraumeni syndrome, familial adenomatous polyposis and juvenile polyposis syndrome.
The Genetic and Rare Diseases Information Center (GARD) has information and resources for patients, caregivers, and families that may be helpful before and after diagnosis of this condition. GARD is a program of the National Center for Advancing Translational Sciences (NCATS), part of the National Institutes of Health (NIH).
View reportOrphanet has a summary about this condition that may include information on the diagnosis, care, and treatment as well as other resources. Some of the information and resources are available in languages other than English. The summary may include medical terms, so we encourage you to share and discuss this information with your doctor. Orphanet is the French National Institute for Health and Medical Research and the Health Programme of the European Union.
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