. Author manuscript; available in PMC: 2014 Jul 10.

Published in final edited form as: Hematology Am Soc Hematol Educ Program. 2011;2011:257–263. doi: 10.1182/asheducation-2011.1.257

Table 1.

Classification of eosinophilic myeloproliferative neoplasms

WHO 2001²	WHO 2008³	HES Working Group^4,5
CMD	MPN	Myeloproliferative HES
CEL (and HES)	CEL-NOS	PDGFRA-associated CEL
CMML	Mastocytosis	CEL-NOS
CMML with eosinophilia	MPN, unclassifiable	HES with myeloproliferative features but clonality unproven
Mastocytosis	Myeloid and lymphoid neoplasms associated with eosinophilia and abnormalities of PDGFRA, PDGFRB or FGFR1	Associated HES
SM-eo		SM-eo

CMD indicates chronic myeloproliferative disease; CMML, chronic myelomonocytic leukemia; and MPN, myeloproliferative neoplasm.