Duodenal Neuroendocrine Tumor

**Semantic type:** Neoplastic Process

**Definition:** A well-differentiated, low-, intermediate-, or high-grade neoplasm with neuroendocrine differentiation that arises from the duodenum.

**Synonyms:** - Duodenal Well Differentiated Neuroendocrine Neoplasm - Duodenal Well-Differentiated Neuroendocrine Neoplasm