Mixed neuroendocrine–non‐neuroendocrine neoplasm associated with autoimmune gastritis

Abstract

Abstract A 60‐year‐old woman presented with a protruding tumor at the anterior wall of the middle gastric body, and she was positive for anti‐parietal cells antibodies with elevated serum gastrin level. Final diagnosis was a mixed neuroendocrine–non‐neuroendocrine neoplasm consisting of adenocarcinoma (tub1) and neuroendocrine tumor G2 with autoimmune gastritis.

Keywords

• adenocarcinoma
• autoimmune gastritis
• endoscopic submucosal dissection
• mixed neuroendocrine‐non‐neuroendocrine neoplasms