Gastric neuroendocrine cell hyperplasia and type 1 tumours occurring within gastric hyperplastic polyps.

We wish to highlight the unusual occurrence of gastric neuroendocrine cell hyperplasia and type I neuroendocrine tumours within three hyperplastic polyps. In all cases, the neuroendocrine component was present within and between the hyperplastic foveolar glands of the polyps and overall formed the minor part of the polyps. Two of the patients presented with epigastric pain and the other with fatigue from anaemia, and on endoscopy, all three were found to have superficially ulcerated gastric polyps in the body (cases 1 and 2) and fundus (case 3).