Stage I Ampulla of Vater Cancer AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage I includes: IA (T1, N0, M0); IB (T2, N0, M0). T1: Tumor limited to ampulla of Vater or sphincter of Oddi. T2: Tumor invades duodenal wall. N0: No regional lymph node metastasis. M0: No distant metastasis. (from AJCC 7th Ed.)

**Synonyms:** - Ampulla of Vater Cancer Stage I - Stage I Ampulla of Vater Cancer - Stage I Ampulla of Vater Cancer - Stage I Ampulla of Vater Carcinoma - Stage I Ampullary Carcinoma