Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «L»:
Leukemia, chronic phase of
Leukemia, chronic phase of: A stage in which
there are few blast cells in the blood or bone marrow, and
few if any symptoms....
Leukemia, hairy cell
Leukemia, hairy cell: See: Hairy cell leukemia....
Leukemia, juvenile myelomonocytic leukemia
Leukemia, juvenile myelomonocytic leukemia: See:
Juvenile myelomonocytic leukemia....
Leukemia, lymphocytic: A form of leukemia that
has a sudden onset, lymphocytic leukemia starts in the bone
marrow but often spreads to the lymphatic and nervous
system. With aggressive treatment, which may include
chemotherapy, radiation, bone-marrow transplant, and/or
biological therapy, the...
Leukemia, refractory: Leukemia in which the high
level of white blood cells is not decreasing in response to
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...
Leukemic reticuloendotheliosis: See: Hairy cell leukemia....
Leukemoid reaction: A benign condition in which the
high number of white blood cells found in a blood test resembles the
numbers seen in leukemia. For example, infectious mononucleosis can
return blood-test results with a leukemoid reaction....
Leuko-: Prefix meaning white, as in leukocyte (white blood cell). Leuko- comes from the Greek "leukos" meaning white. Leuco- is an alternate spelling. Thus, a leukocyte = a leucocyte....
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)....
Leukocyte count: A white blood cell (WBC) count. ...
Leukocyte, granular: A type of white blood cell filled
with microscopic granules (tiny sacs) containing enzymes that digest microorganisms.
Granular leukocytes -- they are better known as granulocytes -- are part of the innate immune system and have somewhat non specific, broad-based activity. The...
Leukocyte,eosinophilic: See: Eosinophil....