label: Stage IVB Mucosal Melanoma of the Head and Neck AJCC v7
label_lc: stage ivb mucosal melanoma of the head and neck ajcc v7
description: "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.)"