Histopathologic and phenotypic characteristics of the 48 patients with nasal NK/T-cell lymphomas
| Characteristic . | No. patients/total (%) . |
|---|---|
| Angiocentric/angioinvasion pattern | 39/48 (81) |
| Epitheliotropism | 37/48 (77) |
| Necrosis | 42/48 (87) |
| Cytology | |
| Small/medium | 22/48 (46) |
| Medium/large | 26/48 (54) |
| CD3ε | 48/48 (100) |
| CD5 | 0/48 (0) |
| CD56 | 38/48 (79) |
| TiA1 | 32/32 (100) |
| GrB | 35/35 (100) |
| EBV* | 48/48 (100) |
| Characteristic . | No. patients/total (%) . |
|---|---|
| Angiocentric/angioinvasion pattern | 39/48 (81) |
| Epitheliotropism | 37/48 (77) |
| Necrosis | 42/48 (87) |
| Cytology | |
| Small/medium | 22/48 (46) |
| Medium/large | 26/48 (54) |
| CD3ε | 48/48 (100) |
| CD5 | 0/48 (0) |
| CD56 | 38/48 (79) |
| TiA1 | 32/32 (100) |
| GrB | 35/35 (100) |
| EBV* | 48/48 (100) |
EBV association was demonstrated by in situ hybridization in 47 cases and by LMP-1 immunostaining in 6 of 10 cases.