Myeloid Health Dictionary

Myeloid: From 2 Different Sources


An adjective that relates to the granulocyte (see GRANULOCYTES) precursor cell in the BONE MARROW. For example, myeloid LEUKAEMIA, which arises from abnormal growth in the blood-forming tissue of the bone marrow.
Health Source: Medical Dictionary
Author: Health Dictionary
adj. 1. like, derived from, or relating to bone marrow. 2. resembling a *myelocyte. 3. relating to the spinal cord.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Leukaemia, Chronic Myeloid

A type of leukaemia, also called chronic granulocytic leukaemia, which is caused by the overproduction of granulocytes, neutrophils, or polymorphonuclear leukocytes (see blood cells). The cause is unknown. This type of leukaemia usually has 2 phases: a chronic phase, which may last for several years, and a more cancerous phase, which is known as the blastic, accelerated, or acute phase.

During the chronic phase, symptoms may include fever, night sweats, and weight loss. Visual disturbances, abdominal pain, and priapism may also occur. The symptoms of the more cancerous phase are like those of the acute forms of leukaemia (see leukaemia, acute). The diagnosis is made from blood tests and a bone marrow biopsy. Treatment of the chronic phase includes anticancer drugs. When the disease transforms into the acute phase, treatment is similar to that given for acute leukaemia.... leukaemia, chronic myeloid

Myeloid Leukaemia

a variety of *leukaemia in which the type of blood cell that proliferates abnormally originates in the blood-forming (myeloid) tissue of the bone marrow. Myeloid leukaemias may be acute or chronic and may involve any one of the cells produced by the marrow. Blood cells in patients with chronic myeloid leukaemia contain a reciprocal *translocation between chromosomes 9 and 22 (see Philadelphia chromosome); molecular characterization of the translocation has led to the development of specific drugs to block the effects of this abnormality (see tyrosine kinase inhibitor).... myeloid leukaemia

Myeloid Tissue

a tissue in the *bone marrow in which the various classes of blood cells are produced. See also haemopoiesis.... myeloid tissue



Recent Searches