label: Duodenal and Ampulla of Vater Neuroendocrine Tumor pT4 TNM Finding v9
label_lc: duodenal and ampulla of vater neuroendocrine tumor pt4 tnm finding v9
description: Duodenum or ampulla of Vater neuroendocrine tumor with invasion of the visceral peritoneum (serosa) or other organs. (from AJCC 9th Ed.)