Stage IVB Head and Neck Mucosal Melanoma AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage IVB includes: T4b, Any N, M0. T4b: Very advanced disease. Tumor involves brain, dura, skull base, lower cranial nerves (IX, X, XI, XII), masticator space, carotid artery, prevertebral space, or mediastinal structures. M0: No distant metastasis. (AJCC 7th ed.)

**Synonyms:** - Stage IVB Mucosal Melanoma of the Head and Neck - Stage IVB Mucosal Melanoma of the Head and Neck - Stage IVB Mucosal Melanoma of the Head and Neck AJCC v7