Duodenal and Ampulla of Vater Neuroendocrine Tumor pT4 TNM Finding v9

**Semantic type:** Finding

**Definition:** Duodenum or ampulla of Vater neuroendocrine tumor with invasion of the visceral peritoneum (serosa) or other organs. (from AJCC 9th Ed.)

**Synonyms:** - Duodenum and Ampulla of Vater Neuroendocrine Tumor pT4 TNM Finding v9