| chronic leukaemia | A persistent cancer of the blood, usually of gradual onset and generally of slow progression. May be diagnosed by chance following a routine blood test and prior to the appearance of clinical symptoms. Origin: Gr. Haima = blood (13 Nov 1997) |
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| chronic lymphocytic leukaemia | <haematology> A slowly progressing form of leukaemia, characterised by an increased number of the type of white blood cell known as lymphocytes. With about 3, 500 new cases occurring each year in the UK, it is the most common form of leukaemia and occurs predominantly in late middle age onwards. It has variable symptoms and course, but may be diagnosed by chance before the patient develops any clinical symptoms of disease. Acronym: CLL Origin: Gr. Haima = blood (12 Jan 1998) |
| chronic myeloid leukaemia | <haematology> A leukaemia which is initially slowly-progressing. There are approximately 650 new cases each year in the UK. It is characterised by the presence of large numbers of abnormal mature granulocytes, circulating in the blood. Synonym: chronic granulocytic leukaemia. Acronym: CML Origin: Gr. Haima = blood (12 Jan 1998) |
| chronic myelomonocytic leukaemia | <haematology> A form of myelodysplasia characterised by an increase in the number of circulating white blood cells of the monocyte type. Acronym: CMML Origin: Gr. Haima = blood (12 Jan 1998) |
| micromyeloblastic leukaemia | A form of myelocytic leukaemia in which relatively large proportions of micromyeloblasts are found in the circulating blood and in bone marrow and other tissues. (05 Mar 2000) |
| mixed cell leukaemia | Term infrequently used as a designation for granulocytic leukaemia, thereby emphasizing the occurrence of different types of cells in the myeloid series (i.e., neutrophilic, eosinophilic, and basophilic granulocytes), in contrast to the comparatively monotonous pattern observed in lymphocytic and monocytic leukaemia. (05 Mar 2000) |
| CNS leukaemia | <oncology> Invasion of the brain or spinal cord by leukaemic cells. This may be diagnosed by examination of the surrounding cerebrospinal fluid. Origin: Gr. Haima = blood (13 Nov 1997) |
| moloney leukaemia virus | A murine virus arising during the propagation of s37 mouse sarcoma, and causing lymphoid leukaemia in mice. It also infects rats and newborn hamsters and is apparently transmitted vertically to embryos in utero and through mother's milk. (12 Dec 1998) |
| Moloney murine leukaemia virus | <molecular biology, virology> Replication competent retrovirus (Oncovirinae) that causes leukaemia in mice, isolated by Moloney from cell free extracts made from a transplantable mouse sarcoma. (18 Nov 1997) |
| monocytic leukaemia | Cancer of the blood due to proliferation of cells of the monocyte series. Origin: Gr. Haima = blood (13 Nov 1997) |
| common acute lymphoblastic leukaemia | <haematology, oncology> A sub-type of acute lymphoblastic leukaemia affecting cells early in the B lymphocyte lineage which accounts for about 80% of all acute lymphoblastic leukaemia. Origin: Gr. Haima = blood (13 Nov 1997) |
| mouse leukaemia viruses | Retroviruses of the murine leukaemia-sarcoma complex that produce leukaemia and sometimes lymphosarcomas in mice, including the Abelron, Gross, Moloney, Friend, and Rauscher strains of virus; they have been isolated from inbred mice having high incidence of spontaneous lymphoid leukaemia. (05 Mar 2000) |
| plasma cell leukaemia | An unusual disease characterised by leukocytosis and other signs and symptoms that are suggestive of leukaemia, in association with diffuse infiltrations and aggregates of plasma cells in the spleen, liver, bone marrow, and lymph nodes, and the presence of considerable numbers of plasma cells in the circulating blood; the total number of leukocytes in the latter may range from normal levels to 80,000 or 90,000 per cu mm, and 5 to 90% may be plasma cells; multiple myelomas are observed in some examples of plasma cell leukaemia, but discrete nodules are not formed in bone. Although there are other clinicopathologic differences in the two conditions, they may be phases of the same basic process. (05 Mar 2000) |
| murine leukaemia | A leukaemic disorder of mice caused by a number of different type C retroviruses. (05 Mar 2000) |
| murine leukaemia virus | <virology> A group of type C retroviruses infecting mice and causing in some strains lymphatic leukaemia after a long latent period. Nearly all are replication competemt and v onc minus. See: Abelson leukaemia virus. (18 Nov 1997) |