rectal hyperplastic polyp NCIT:C5619 UMLS:C1335679 rectal Hp rectal metaplastic polyp rectal MP EFO:1000502 MONDO:0006392 hyperplastic polyp of the rectum 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. hyperplastic polyp of rectum MEDGEN:277574 polyp of rectum