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Semin Diagn Pathol. 2011 Nov;28(4):304-13.

The myeloproliferative neoplasms including the eosinophilia-related myeloproliferations associated with tyrosine kinase mutations: changes and issues in classification and diagnosis criteria.

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1
Hematopathology Section, Department of Pathology, University of Chicago, Chicago, Illinois 60637, USA. john.anastasi@uchospitals.edu

Abstract

The classification and diagnostic criteria of the myeloproliferative neoplasms have changed significantly in the 2008 World Health Organization monograph on the classification of hematologic malignancies. Many of the changes arose from the findings that the different malignancies are associated with abnormal cell signaling because of translocations or mutations in genes for protein tryosine kinases involved in the normal growth and regulation of hematopoietic cells. These include ABL1, PDGFRA, PDGFRB, FGFR1, JAK2, MPL, and KIT. The new classification attempts to reflect the related molecular pathogenesis of the different entities and incorporates the identification of the molecular defects into the diagnostic criteria for some of the individual diseases. Issues concerning the new classification are discussed, and the new diagnostic criteria are reviewed and commented upon.

PMID:
22195408
[Indexed for MEDLINE]
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