No abstract available.
Leukemia, Large Granular Lymphocytic*

Humans ; Leukemia, Large Granular Lymphocytic

Humans ; Leukemia, Large Granular Lymphocytic

Humans ; Immunophenotyping ; Leukemia, Large Granular Lymphocytic ; Splenectomy

Aged ; Female ; Humans ; Immunophenotyping ; Leukemia, Large Granular Lymphocytic ; classification ; immunology

OBJECTIVEPresenting the clinical features of one patient with CD4⁺/CD8⁻ T-cell large granular lymphocytic leukemia, to improve the understanding of the disease.

METHODSClinical data of one patient hospitalized for skin rush and leukocytosis were analyzed, and the related literatures were reviewed.

RESULTSThe patient was hospitalized for skin rush and leukocytosis. Routine blood test showed remarkable elevated white blood cell counts and mild anemia. Subsequent hematological examination led to a diagnosis of T- cell large granular lymphocytic leukemia with CD4⁺/CD8⁻ immunophenontype.

CONCLUSIONCD3⁺/CD4⁺/CD8⁻ T- cell large granular lymphocytic leukemia is a kind of variant subtype, and is relatively rare, it has different clinical features with classic CD3⁺/CD4⁻/CD8⁺/TCRαβ⁺T- cell large granular lymphocytic leukemia, so differentiating diagnosis is of great importance.

Large granular lymphocytic (LGL) leukaemia is an uncommon clonal lymphoproliferative disorder. The WHO classification recognizes three distinct disorders of LGLs: T-cell large granular lymphocytic leukaemia (T-LGL), chronic lymphoproliferative disorders of NK-cells (CLPD-NK) and aggressive NK-cell leukaemia. Despite the different origin of cells, there is considerable overlap between T-LGL and CLPD-NK in terms of clinical presentation and treatment. Majority of these patients are asymptomatic and may not need treatment. When significant cytopenias occur, the application of immunosuppressive therapy often should be considered. In contrast, aggressive NK cell leukemia and the rare CD56(+) aggressive T-LGL leukemia have a fulminant clinical course and an earlier age of onset, therefore, more intensive combination chemotherapy is required, followed by allogeneic hematopoietic stem cell transplantation. However, these diseases are relatively rare, there are few clinical trials to guide management. In this review, the pathogenesis, diagnosis, treatment and prognosis of this leukemia are summarized and discussed.
Humans ; Leukemia, Large Granular Lymphocytic ; classification ; diagnosis ; pathology ; therapy

Humans ; Anemia, Aplastic ; Leukemia, Large Granular Lymphocytic/diagnosis* ; Immunophenotyping

Humans ; Leukemia, Large Granular Lymphocytic/drug therapy* ; Aminopyridines ; Benzamides

Large granular lymphocyte (LGL) leukemia, a rare hematologic malignancy, is classified into two groups, CD3+ T-LGL leukemia and CD3- NK-LGL leukemia based upon immunophenotype of the cells. We describe a patient with NK-LGL leukemia, who showed a rapidly fatal course. A 56-year-old man was presented with a very high count of white blood cells (154,400/mm3) consisting of mostly LGLs. Immunophenotyping using flow cytometric analysis revealed that majority of the cells were positive for HLA-DR and CD56 but negative for all the myeloid and lymphoid markers. Despite of active supportive care, he died of coagulopathy and multi-organ failure on the sixth hospital day.
Hematologic Neoplasms ; HLA-DR Antigens ; Humans ; Immunophenotyping ; Leukemia* ; Leukemia, Large Granular Lymphocytic ; Leukocytes ; Lymphocytes* ; Middle Aged