Duodenal and Ampulla of Vater Neuroendocrine Tumor Pathologic Regional Lymph Nodes TNM Finding v9

**Semantic type:** Finding

**Definition:** A pathologic finding about one or more characteristics of duodenum or ampulla of Vater neuroendocrine tumor, following the rules of the TNM AJCC v9 classification system as they pertain to staging of regional lymph nodes.

**Synonyms:** - Duodenum and Ampulla of Vater Neuroendocrine Tumor Pathologic Regional Lymph Nodes TNM Finding v9