Duodenal and Ampulla of Vater Neuroendocrine Tumor pN1 TNM Finding v9

**Semantic type:** Finding

**Definition:** Duodenum or ampulla of Vater neuroendocrine tumor with involvement of regional lymph node(s). (from AJCC 9th Ed.)

**Synonyms:** - Duodenum and Ampulla of Vater Neuroendocrine Tumor pN1 TNM Finding v9