a subgroup of 133 subjects whose worst index lesion was a single , small ( less than 10 mm ) tubular adenoma and who had no first-degree relatives with colorectal cancer had only a 3 % prevalence of advanced colonic neoplasms ( tubular adenomas greater than or equal to 10 mm in diameter ; tubulovillous , villous , or severely dysplastic adenomas ; or invasive cancers ) found on colonoscopy -- no greater than would be expected in the general population .
C0334292
tubular adenomas
C0334044
dysplastic