<prompt> Pseudopolyps are common withUlcerative colitisCrohns diseaseCA colonDiverticulosis  <response>: Ans. a Ulcerative colitisRef: Sabiston 20th edition, Page 1260 Pseudo polyps are uninvolved areas in colon in ulcerative colitis. If cancer arises in ulcerative colitis it arises from intervening areas of pseudo polyps. 