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chronic idiopathic myelofibrosis (KRAH-nik IH-dee-oh-PA-thik MY-eh-loh-fy-BROH-sis)

 A progressive, chronic disease in which the bone marrow is replaced by fibrous tissue and blood is made in organs such as the liver and the spleen, instead of in the bone marrow. This disease is marked by an enlarged spleen and progressive anemia. Also called agnogenic myeloid metaplasia, idiopathic myelofibrosis, myelosclerosis with myeloid metaplasia, and primary myelofibrosis.

Previous Definitions:chromosome, chronic, chronic eosinophilic leukemia, chronic fatigue syndrome, chronic granulocytic leukemia
Next Definitions:chronic leukemia, chronic lymphoblastic leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, chronic myeloid leukemia