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Clinical Features, Pathogenesis, and Treatment of Large Granular Lymphocyte Leukemias

Kazuo Oshimi1

  • 1Department of Medicine, Kushiro Rosai Hospital, Japan.

Internal Medicine (Tokyo, Japan)
|July 19, 2017
PubMed

Large granular lymphocytes (LGLs) are large lymphocytes with azurophilic granules in their cytoplasm. LGLs are either natural killer (NK) cells or T lymphocytes. Expansions of the LGLs in the peripheral blood are seen in various conditions, including three clonal disorders: T-cell LGL (T-LGL) leukemia, chronic lymphoproliferative disorders of NK cells (CLPD-NK), and aggressive NK-cell leukemia (ANKL). However, the monoclonal and polyclonal expansion of LGLs has been associated with many other conditions. The present article describes these LGL disorders, with special emphasis on the clinical features, pathogenesis, and treatments of the three above-mentioned clonal disorders.

Keywords:
LGLT-LGL leukemiaaggressive NK-cell leukemiachronic lymphoproliferative disorders of NK cells

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