A lab technician is observing and counting the white blood cells of a patient. What type of cancer is the technician most likely looking for?

Leukemia is a cancer of blood-forming tissues that often causes abnormal numbers of white blood cells. Counting white blood cells can therefore help detect or monitor leukemia. Chondrosarcoma affects cartilage, CNS cancers affect the brain or spinal cord, and myeloma involves plasma cells.

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