Duodenal and Ampulla of Vater Neuroendocrine Tumor pTX TNM Finding v9

**Semantic type:** Finding

**Definition:** Duodenum or ampulla of Vater neuroendocrine tumor in which the primary tumor cannot be assessed. (from AJCC 9th Ed.)

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