Known as: Stage IV Nasopharyngeal Lymphoepithelioma, Stage IV Nasopharyngeal Undifferentiated Carcinoma, Metastatic Lymphoepithelioma of the Nasopharynx
Stage IV includes: IVA: (T4, N0, M0); (T4, N1, M0); (T4, N2, M0); IVB (Any T, N3, M0); IVC (Any T, Any N, M1). T4: Nasopharyngeal cancer with…