Duodenal Composite Gangliocytoma/Neuroma and Neuroendocrine Tumor

**Semantic type:** Neoplastic Process

**Definition:** A neoplasm that arises from the duodenum and consists of a mixture of neuroendocrine cells, Schwann-like cells, and ganglion cells. It was formerly known as gangliocytic paraganglioma.

**Synonyms:** - Duodenal CoGNET - Duodenal Gangliocytic Paraganglioma