Leukemia, refractory
Leukemia in which the high level of white blood cells does not decrease in response to treatment.
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- Leukemia, smoldering
A condition in which the bone marrow does not function normally. It does not produce enough blood cells. This condition may progress and become acute leukemia. Smoldering leukemia also is called myelodysplastic syndrome or preleukemia.
- Leukemia, t(8;21)
Leukemia with a translocation (an exchange of material) between chromosomes 8 and 21. Seen characteristically in acute myeloid leukemia (AML) — acute nonlymphocytic leukemia (ANLL), usually the M2 type. The breakpoints permitting the translocation to occur are in chromosome bands 8q22 and 21q22 in the ETO and AML1 genes, respectively. The translocation creates an AML1-ETO […]
- Leukemoid reaction
A benign condition in which the high number of white blood cells found on a blood test resembles the numbers seen in leukemia. For example, infectious mononucleosis can produce a leukemoid ‘reaction.
- Leuko-
Prefix meaning white, as in leukocyte (white blood cell).
- Leukocoria
A white pupillary reflex. When one shines a bright light on the pupil, it normally appears red. In leukocoria, the light makes the pupil look white. This occurs with a number of eye diseases including congenital cataract and retinoblastoma (a malignancy of the retina).