label: Stage IA Breast Cancer AJCC v7
label_lc: stage ia breast cancer ajcc v7
description: Stage IA includes: T1, N0, M0.  T1: Tumor 20 mm or less in greatest dimension.  T1 includes T1mi. T1mi: Tumor 1 mm or less in greatest dimension.  N0: No regional lymph node metastasis.  M0: No clinical or radiographic evidence of distant metastasis.  M0 includes M0(i+).  (AJCC 7th Ed.)