Small Intestinal Adenoma

**Semantic type:** Neoplastic Process

**Definition:** 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.

**Synonyms:** - Adenoma of Small Bowel - Adenoma of Small Intestine - Adenoma of the Small Bowel - Adenoma of the Small Intestine - Non-Ampullary Adenoma - Small Bowel Adenoma