A serrated polypoid lesion that arises in the rectum. It rarely produces symptoms. This group includes goblet cell rich, mucin poor, and microvesicular hyperplastic polyps. The disease is rectal hyperplastic polyp (MONDO_0006392). Also known as: hyperplastic polyp of rectum, hyperplastic polyp of the rectum, rectal Hp, rectal MP, rectal metaplastic polyp.