Stage II includes: T2, N0, M0. T2: Supraglottis: Tumor invades the mucosa of more than one adjacent subsite of supraglottis or glottis or region outside the supraglottis (e.g., mucosa of base of the tongue, vallecula, medial wall of pyriform sinus) without fixation of the larynx. Glottis: Tumor extends to supraglottis and/or subglottis, and/or with impaired vocal cord mobility. Subglottis: Tumor extends to vocal cord(s) with normal or impaired mobility. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.) [from NCI]