Stage III includes: (T3, N0, M0); (T1, N1, M0); (T2, N1, M0); (T3, N1, M0). T3: Tumor measuring more than 4 cm in greatest dimension or with fixation of hemilarynx or extension to esophagus. T1: Tumor limited to one subsite of hypopharynx and/or 2 cm or less in greatest dimension. T2: Tumor invades more than one subsite of the hypopharynx or an adjacent site, or measures more than 2 cm but not more than 4 cm in greatest diameter without fixation of hemilarynx. 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]