Clinical features of extranodal nasal-type NK/T-cell lymphoma in children and adolescents
| Characteristic . | Patients . | |
|---|---|---|
| No. . | % . | |
| Age, y | ||
| 7-14 | 8 | 21.6 |
| 15-18 | 21 | 56.8 |
| 19-21 | 8 | 21.6 |
| Sex | ||
| Male | 24 | 64.9 |
| Female | 13 | 35.1 |
| Primary site | ||
| Nasal cavity | 22 | 59.5 |
| Nasopharynx | 11 | 29.7 |
| Tonsil | 4 | 10.8 |
| Ann Arbor sage | ||
| I | 19 | 51.4 |
| II | 14 | 37.8 |
| III | 2 | 5.4 |
| IV | 2 | 5.4 |
| B symptoms | 23 | 62.2 |
| Elevated LDH level | 16 | 51.6 |
| ECOG score | ||
| 0 | 9 | 24.3 |
| 1 | 23 | 62.2 |
| 2 | 5 | 13.5 |
| Age-adjusted IPI | ||
| 0 | 16 | 43.2 |
| 1 | 18 | 48.6 |
| 2 | 3 | 8.1 |
| Cervical lymph node involved | ||
| Yes | 17 | 45.9 |
| No | 20 | 54.1 |
| Characteristic . | Patients . | |
|---|---|---|
| No. . | % . | |
| Age, y | ||
| 7-14 | 8 | 21.6 |
| 15-18 | 21 | 56.8 |
| 19-21 | 8 | 21.6 |
| Sex | ||
| Male | 24 | 64.9 |
| Female | 13 | 35.1 |
| Primary site | ||
| Nasal cavity | 22 | 59.5 |
| Nasopharynx | 11 | 29.7 |
| Tonsil | 4 | 10.8 |
| Ann Arbor sage | ||
| I | 19 | 51.4 |
| II | 14 | 37.8 |
| III | 2 | 5.4 |
| IV | 2 | 5.4 |
| B symptoms | 23 | 62.2 |
| Elevated LDH level | 16 | 51.6 |
| ECOG score | ||
| 0 | 9 | 24.3 |
| 1 | 23 | 62.2 |
| 2 | 5 | 13.5 |
| Age-adjusted IPI | ||
| 0 | 16 | 43.2 |
| 1 | 18 | 48.6 |
| 2 | 3 | 8.1 |
| Cervical lymph node involved | ||
| Yes | 17 | 45.9 |
| No | 20 | 54.1 |
LDH indicates lactate dehydrogenase levels; ECOG, Eastern Cooperative Oncology Group; and IPI, International Prognostic Index.