Stage I includes: T1 or T2, N0, M0, Mitotic rate: Low. T1: Tumor 2 cm or less in greatest dimension. T2: Tumor more than 2 cm, but not more than 5 cm, in greatest dimension. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 7th ed.) [from
NCI]