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Table 4 Clinical features of 91 patients with extranodal natural killer (NK)/T-cell lymphoma, nasal type
| Item | Case(s) | Percentage (%) |
|---|---|---|
| Sex | ||
| Female | 23 | 25.3 |
| Male | 68 | 74.7 |
| Age (years) | ||
| ≤60 | 81 | 89.0 |
| >60 | 10 | 11.0 |
| B symptoms | ||
| No | 46 | 50.5 |
| Yes | 42 | 46.2 |
| Unavailable | 3 | 3.3 |
| Primary sites | ||
| Upper aerodigestive tract | 78 | 85.7 |
| Skin | 5 | 5.5 |
| Orbit | 3 | 3.3 |
| Gastrointestinal tract | 2 | 2.2 |
| Lymph node | 1 | 1.1 |
| Breast | 1 | 1.1 |
| Lung | 1 | 1.1 |
| Ann Arbor stage | ||
| Stage I | 37 | 40.7 |
| Stage II | 34 | 37.4 |
| Stage III | 5 | 5.5 |
| Stage IV | 15 | 16.4 |
| Lymph node involvement | ||
| Yes | 41 | 45.1 |
| No | 50 | 54.9 |
