Classification of NK-cell neoplasms.
| Immature . | Mature . |
|---|---|
| Abbreviation: LGL, large granular lymphocyte; NK, natural killer | |
| *Previously called NK-cell leukemia/lymphoma, recently characterized as aggressive NK-cell leukemia to emphasize the predominance of the leukemic manifestations | |
| **The category myeloid/NK cell precursor acute leukemia is defined as a CD7+, CD56+, surface CD3-, myeloperoxidase-neoplasm with lymphoblastic morphology.70 | |
| Myeloid/NKcell precursor acute leukemia** | Leukemia: |
| Indolent | |
| LGL leukemia 21,71– 72 - | |
| Aggressive | |
| NK-cell leukemia* | |
| Blastic NK-cell lymphoma | Nasal/nasal type NK/Tcell lymphoma |
| Immature . | Mature . |
|---|---|
| Abbreviation: LGL, large granular lymphocyte; NK, natural killer | |
| *Previously called NK-cell leukemia/lymphoma, recently characterized as aggressive NK-cell leukemia to emphasize the predominance of the leukemic manifestations | |
| **The category myeloid/NK cell precursor acute leukemia is defined as a CD7+, CD56+, surface CD3-, myeloperoxidase-neoplasm with lymphoblastic morphology.70 | |
| Myeloid/NKcell precursor acute leukemia** | Leukemia: |
| Indolent | |
| LGL leukemia 21,71– 72 - | |
| Aggressive | |
| NK-cell leukemia* | |
| Blastic NK-cell lymphoma | Nasal/nasal type NK/Tcell lymphoma |