label: Small Intestinal Adenoma
label_lc: small intestinal adenoma
description: 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.