Stage III includes: (T3, N0, M0); (T1, N1, M0); (T2, N1, M0); (T3, N1, M0). T1: Tumor 2 cm or less in greatest dimension. T2: Tumor more than 2 cm but not more than 4 cm in greatest dimension. T3: Tumor measuring more than 4 centimeters in greatest dimension or extension to lingual surface of epiglottis. N0: No regional lymph node metastasis. N1: Metastasis in a single ipsilateral lymph node, 3 cm or less in greatest dimension. M0: No distant metastasis. (AJCC 7th ed.) [from NCI]