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• n  malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer

• leukemia
• leukaemia
• leucaemia

News & Articles

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• National Cancer Institute
  Chronic lymphocytic leukemia (CLL) is a cancer of the blood and bone marrow that most often affects older adults. CLL responds to bone marrow stem cell transplantation (allo-HSCT); however, the rate of relapse for CLL remains relatively high.
  Aug. 6, 2013 - National Cancer Institute