Stage 0 Digestive System Neuroendocrine Tumor AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage 0 includes: Tis, N0, M0. Tis (applies only to stomach): Carcinoma in situ/dysplasia (tumor size less than 0.5 mm), confined to mucosa. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 7th ed.)

**Synonyms:** - Stage 0 Digestive System Neuroendocrine Neoplasm - Stage 0 Digestive System Neuroendocrine Neoplasm AJCC v7 - Stage 0 Digestive System Neuroendocrine Tumor - Stage 0 Gastrointestinal Neuroendocrine Neoplasm - Stage 0 Gastrointestinal Neuroendocrine Neoplasm AJCC v7