NCIt related terms : Stage IVB Hypopharyngeal Throat Cancer;
NCIt definition : Stage IVB includes: (Any T, N3, M0); (T4b, Any N, M0). T4b: Very advanced local disease.
Tumor invades prevertebral fascia, encases carotid artery, or involves mediastinal
structures. N3: Tumor with metastasis in a lymph node larger than 6 cm in greatest
dimension and ENE(-); or metastasis in a single ipsilateral lymph node larger than
3 cm in greatest dimension and ENE( ); or metastases in multiple ipsilateral, contralateral,
or bilateral lymph nodes any with ENE( ). M0: No distant metastasis. (AJCC 8th ed.);