Results of Epstein-Barr virus (EBV) studies
| EBV status | No. of patients (%) |
|---|---|
| *Percentage of positively stained cells in each specimen. | |
| EBER, nuclear EBV encoded RNA; LMP-1, latent membrane protein 1. | |
| LMP-1 | |
| Negative | 39 (87) |
| Positive | 6 (13) |
| EBER* | |
| 0 | 5 (11) |
| 1 (1–10%) | 0 |
| 2 (10–50%) | 2 (4) |
| 3 (⩾50%) | 38 (85) |









