Stage II includes: IIA: (T3, N0, M0); IIB: (T1, N1, M0); (T2, N1, M0); (T3, N1, M0). T1: Tumor measuring 2 cm or less in greatest dimension. T2: Tumor measuring more than 2 cm and 4 cm or less in greatest dimension. T3: Tumor measuring more than 4 cm in greatest dimension. N0: No regional lymph node metastasis. N1: Metastasis in one to three regional lymph nodes. M0: No distant metastasis. (AJCC 8th ed.) [from NCI]