Stage I Digestive System Neuroendocrine Tumor AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** 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.)

**Synonyms:** - Stage I Digestive System Neuroendocrine Neoplasm - Stage I Digestive System Neuroendocrine Neoplasm AJCC v7 - Stage I Digestive System Neuroendocrine Tumor - Stage I Gastrointestinal Neuroendocrine Neoplasm - Stage I Gastrointestinal Neuroendocrine Neoplasm AJCC v7