label: Stage IA Ampulla of Vater Cancer AJCC v8
label_lc: stage ia ampulla of vater cancer ajcc v8
description: "Stage IA includes: T1a, N0, M0. T1a: Tumor limited to ampulla of Vater or sphincter of Oddi. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)"