Stage II includes: T2, N0, M0. 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. M0: No distant metastasis. (AJCC 6th and 7th eds.) [from
NCI]