Stage IVB Major Salivary Gland Cancer AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IVB includes: (T4b, Any N, M0); (Any T, N3, M0). T4b: Very advanced disease. Tumor invades skull base and/or pterygoid plates and/or encases carotid artery. N0: No regional lymph node metastasis. N3: Metastasis in a lymph node larger than 6 cm in greatest dimension and ENE(-); or in a single ipsilateral node larger than 3 cm in greatest dimension and ENE(+); or multiple ipsilateral, contralateral, or bilateral nodes any with ENE(+). M0: No distant metastasis. (AJCC 8th ed.)

**Synonyms:** - Stage IVB Major Salivary Gland Cancer - Stage IVB Major Salivary Gland Carcinoma AJCC v8