NCIt definition : An adenoma arising from the glandular epithelium of the gastrointestinal tract. It
is characterized by the presence of a villous architectural pattern. Most often it
occurs in the large intestine, small intestine, and the stomach. The neoplastic epithelial
cells show dysplastic features.;
Alternative definition : NCI-GLOSS: A neoplasm that grows in the colon and other places in the gastrointestinal
tract and sometimes in other parts of the body. These adenomas may become malignant
(cancerous).;