title: Rectal polyps; diagnosis, 5 year follow-up, and relation to carcinoma of the rectum.
mesh_terms: D002277:Carcinoma; D004443:Echinococcosis; D005500:Follow-Up Studies; D006801:Humans; D008099:Liver; D009369:Neoplasms; D011127:Polyps; D012004:Rectal Neoplasms; D012007:Rectum
keywords: LIVER/echinococcosis; RECTUM/cancer; RECTUM/tumors; TUMORS/polypi