<unk> s are either pedunculated (attached to the intestinal wall by a stalk) or sessile (grow directly from the wall). In addition to the gross appearance categorization, they are further divided by their histologic appearance as tubular adenoma which are tubular glands, villous adenoma which are long finger like projections on the surface, and tubulovillous adenoma which has features of both.
Colorectal polyp
Colorectal adenoma
Anal dysplasia
Anorectal varices
Gastric varices
Anal fistula
Callous ulcer
Reactive gastropathy