Autoimmune gastritis(AIG)is a kind of gastritis caused by autoimmune dysfunction.It is often manifested as pernicious anemia or neurological symptoms.Gastric corpus mucosal atrophy is usually observed under endoscopy,which may be accompanied by positive serum anti-parietal cell antibody and/or anti-intrinsic factor antibody.Studies have shown that AIG is a risk factor for gastric neuroendocrine tumors and gastric cancer.Therefore,endoscopic diagnosis and surveillance of AIG are very important.This article reviewed the progress of research on AIG and gastric tumor.
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