Stage III includes: (T3, N0, M0); (T1, N1, M0); (T2, N1, M0); (T3, N1, M0). T3: Tumor size greater than 4 cm or any tumor greater than 10 mm DOI. T1: Tumor size 2 cm or less in greatest dimension and 5 mm or less DOI. T2: Tumor size 2 cm or less in greatest dimension, DOI greater than 5 mm and equal or less than 10 mm or tumor greater than 2 cm but 4 cm or less in greatest dimension and 10 mm or less DOI N1: Metastasis in a single ipsilateral lymph node, 3 cm or smaller in greatest dimension and ENE (extranodal extension)(-). M0: No distant metastasis. (AJCC 8th Ed.) [from NCI]