label: Stage I Duodenal Neuroendocrine Tumor AJCC v8
label_lc: stage i duodenal neuroendocrine tumor ajcc v8
description: Stage I includes: T1, N0, M0. T1: Tumor invading the mucosa or submucosa only and is equal or less than 1 cm. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)