Stage IVB Hypopharyngeal Carcinoma AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage IVB includes: (T4b, Any N, M0); (Any T, N3, M0). T4b: Tumor with very advanced local disease. Tumor invades prevertebral fascia, encases carotid artery, or involves mediastinal structures. N3: Metastasis in a lymph node more than 6 cm in greatest dimension. M0: No distant metastasis. (AJCC 7th ed.)

**Synonyms:** - Stage IVB Carcinoma of Hypopharynx - Stage IVB Carcinoma of the Hypopharynx - Stage IVB Hypopharyngeal Throat Cancer - Stage IVB Hypopharynx Carcinoma - stage IVB hypopharyngeal cancer