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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Leucemia crónica

Chronic leukemia (KRAH-nik loo-KEE-mee-uh)
A slowly progressing cancer that starts in blood-forming tissues such as the bone marrow, and causes large numbers of white blood cells to be produced and enter the blood stream.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.