Duodenal and Ampulla of Vater Neuroendocrine Tumor pT4 TNM Finding v8

**Semantic type:** Finding

**Definition:** Duodenum and ampulla of Vater neuroendocrine tumor invading the visceral peritoneum (serosa) or other organs. (from AJCC 8th Ed.)

**Synonyms:** - Duodenum and Ampulla of Vater Neuroendocrine Tumor pT4 TNM Finding v8