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  • Title: Haematological classification of the chronic myeloid leukaemias.
    Author: Shepherd PC, Ganesan TS, Galton DA.
    Journal: Baillieres Clin Haematol; 1987 Dec; 1(4):887-906. PubMed ID: 3332855.
    Abstract:
    Chronic myeloid leukaemia (CML) includes five subtypes, and the term should be used in the same way as the term chronic lymphoid leukaemia to refer to a group of related conditions. The subtypes of CML are: 1. Chronic granulocytic leukaemia (CGL) (95% of all CML; 90% are Ph+, BCR+, 5% are Ph-, BCR+); 2. Juvenile CML (extremely rare; Ph-, BCR- in the few so far examined); 3. Chronic neutrophilic leukaemia (CNL) (extremely rare; Ph-, BCR- in the few so far examined); 4. Chronic myelomonocytic leukaemia (CMML). CMML with low or normal leukocyte counts is classified as a myelodysplastic syndrome; CMML with high leukocyte count is both myelodysplastic and myeloproliferative. Ph-, BCR-; 5. Atypical CML (aCML). Intermediate between CGL and CMML but has distinctive features. Ph-, mostly BCR-. Significance of few reported BCR+ uncertain. Markedly worse survival than CGL and probably worse than CMML. Definition needs refining. Types 2, 3, 4 and 5 account for 5% of all CML. CGL, CMML, aCML and CNL can be diagnosed in the great majority of cases from the morphological profile of presentation peripheral blood films, but high-quality Romanowsky staining is essential.
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