Source:http://linkedlifedata.com/resource/umls/id/C1302392
NCI: A neoplasm that arises from the glandular epithelium of the small intestine. It is a polypoid or flat circumscribed lesion. Morphologically, it is characterized by a proliferation of neoplastic glandular cells and it is associated with dysplasia. According to the growth pattern, it may be classified as tubular, villous, or tubulovillous.