NCIt related terms : Stage IVB Oropharyngeal (p16-Negative) Throat Cancer;
NCIt definition : Stage IVB includes: (Any T, N3, M0); (T4b, Any N, M0). T4b: Very advanced local disease.
Tumor invades lateral pterygoid muscle, pterygoid plates, lateral nasopharynx, or
skull base or encases carotid artery. 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.);