Stage II Ampulla of Vater Neuroendocrine Tumor AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage II includes: (T2, N0, M0); (T3, N0, M0). T2: Tumor invading through the sphincter of Oddi into duodenal submucosa or muscularis propria, or measuring more than 1 cm. T3: Tumor invading the pancreas or peripancreatic adipose tissue. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)

**Synonyms:** - Stage II Ampulla of Vater Neuroendocrine Tumor