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Updated: May 21, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
Published on: February 16, 2024
[Hyperplastic polyp with neoplastic transformation in a patient with atrophic gastritis and multiple gastric
E G H Moura1, T A Domingos, H Alvarado
1Unidad de Endoscopia Gastrointestinal, Facultad de Medicina, Universidad de Sao Paulo, Sao Paulo, Brasil.
Abstract:
Hyperplastic gastric polyps are often found at GI endoscopy and are not considered premalignant lesions, although some cases of malignancy have been reported. Neuroendocrine tumors, conversely, are rare and account for approximately 1% to 2% of gastric polyps. Both hyperplastic gastric polyps and neuroendocrine tumors are related to gastric atrophy. The case of a hyperplastic polyp with multifocal areas of adenocarcinoma within the polyp associated to multiple gastric neuroendocrine tumors is reported.
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