label: Stage III Nasopharyngeal Carcinoma AJCC v8
label_lc: stage iii nasopharyngeal carcinoma ajcc v8
description: "Stage III includes: (T1, N2, M0); (T0, N2, M0); (T2, N2, M0); (T3, N0, M0); (T3, N1, M0); (T3, N2, M0). T1: Tumor confined to the nasopharynx, or tumor extending to oropharynx and/or nasal cavity without parapharyngeal involvement. T0: No tumor identified, but EBV-positive cervical node(s) involvement is present. T2: Tumor with extension to parapharyngeal space, and/or adjacent soft tissue involvement (medial pterygoid, lateral pterygoid, prevertebral muscles). T3: Tumor infiltrating bony structures at skull base, cervical vertebrae, pterygoid structures, and/or paranasal sinuses. N0: No regional lymph node metastasis. N1: Tumor with unilateral metastasis in cervical lymph node(s), and/or unilateral or bilateral metastasis in retropharyngeal lymph node(s), 6 cm or smaller in greatest dimension, above the caudal border of cricoid cartilage. N2: Tumor with bilateral metastasis in cervical lymph node(s), 6 cm or smaller in greatest dimension, above the caudal border of cricoid cartilage. M0: No distant metastasis. (AJCC 8th ed.)"