<unk> s account for about 25% of all<unk>  polyps. Advanced SSLs with cytological dysplasia are rare in younger patients, and progression of SSLs appears to be linked with ageing.
Sessile serrated lesion
Aberrant crypt foci
Hyperplastic polyp
Squamous intraepithelial lesion
Traditional serrated adenoma
Cameron lesions
Inflammatory fibroid polyp
Intraepithelial neoplasia