Table I.
Patient characteristics.
| Sex | Age, years | EBER-1 | Histopathologya | TNMb | TNM stageb |
|---|---|---|---|---|---|
| Female | 67 | Negative | 1 | T2N3bM1 | IV-C |
| Female | 40 | Positive | 2b | T4N1M0 | IV-A |
| Male | 39 | Positive | 2b | T1N1M0 | II |
| Male | 65 | Positive | 2b | T1N1M0 | II |
| Male | 46 | Positive | 2b | T3N2M0 | III |
a
World Health Organization histopathology classification of nasopharyngeal cancer 2005 (19): 1) Keratinizing squamous cell carcinoma; 2) non-keratinizing carcinoma (a, differentiated type; b, undifferentiated type); and 3) basaloid squamous cell carcinoma
b
TNM classification of malignant tumors (20). EBER-1, EBV-encoded small RNAs 1; TNM, tumor-node-metastasis.