<prompt> The commonest gastric polyp isHyperplastic polypInflammatory polypAdenomatous polypPa of familial polyposis  <response>: .Metaplastichyperplastic Polyp - Metaplastic- indicates a difference in appearance from normal mucosa. Very minute in size- 1-2 mm. Multiple. Common in rectum. Also occurs in other pas of colon. Contains columnar epithelium, cystic dilatation, goblet cells, and lymphocytes. Not a pre-malignant entity. ref:SRB;s manual of surgery,ed 3,pg no 831 