label: Stage I Digestive System Neuroendocrine Tumor AJCC v7
label_lc: stage i digestive system neuroendocrine tumor ajcc v7
description: Stage I includes: T1, N0, M0.  T1: Stomach: tumor invades lamina propria or submucosa and is 1 cm or less in size; duodenum /jejunum/ileum: tumor invades lamina propria or submucosa and is 1 cm or less in size; ampulla: tumor 1 cm or less; colon or rectum: tumor invades lamina propria or submucosa and is 2 cm or less.  N0: No regional lymph node metastasis.  M0: No distant metastasis. (AJCC 7th ed.)