Premalignant lesion for carcinoma rectum is
Familial polyposis
FAP
Juvenile polyp
Adenomatous polyp
This autosomal dominantly inherited condition is characterised by the development of multiple rectal and colonic polyps around pubey. A colonoscopy and biopsy will confirm the diagnosis.as this condition is pre-malignant, a total colectomy must be performed; often, the rectum can be preserved, but regular flexible endoscopy and removal of polyps before they develop carcinoma are required. Ref: Bailey & Love&;s Sho Practice of Surgery,E25,Page-1228,1229
G.I.T