Stage III Nasopharyngeal Carcinoma AJCC v9

**Semantic type:** Neoplastic Process

**Definition:** Stage III includes: (T4, Any N, M0); (Any T, N3, M0). T4: Tumor with any of the following: intracranial extension, unequivocal radiological and/or clinical involvement of cranial nerves, involvement of hypopharynx, involvement of orbit (including inferior orbital fissure), involvement of parotid gland, extensive soft tissue infiltration beyond the anterolateral surface of the lateral pterygoid muscle. N3: Tumor involvement of unilateral or bilateral cervical lymph node(s) and any of the following: more than 6 cm in greatest dimension, extension below the caudal border of cricoid cartilage, advanced radiologic extranodal extension with involvement of adjacent muscles, skin, and/or neurovascular bundle. M0: No distant metastasis. (AJCC 9th ed.)