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U.S. National Institutes of Health National Cancer Institute
Dictionary of Cancer Terms
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chronic phase (KRAH-nik fayz)

 Refers to the early stages of chronic myelogenous leukemia or chronic lymphocytic leukemia. The number of mature and immature abnormal white blood cells in the bone marrow and blood is higher than normal, but lower than in the accelerated or blast phase.

Previous Definitions:chronic myeloid leukemia, chronic myelomonocytic leukemia, chronic neutrophilic leukemia, chronic obstructive pulmonary disease, chronic pain
Next Definitions:chronic phase chronic myelogenous leukemia, CHS 828, CI-1033, CI-958, CI-980