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. Author manuscript; available in PMC: 2012 Jul 19.
Published in final edited form as: J Allergy Clin Immunol. 2010 Jul;126(1):45–49. doi: 10.1016/j.jaci.2010.03.042

FIG 1.

FIG 1

Revised classification of HESs. Changes from the previous classification3 are indicated in red. Dashed arrows identify HES forms for which at least some patients have T cell–driven disease. Classification of myeloproliferative forms has been simplified, and patients with HES and eosinophil hematopoietin–producing T cells in the absence of a T-cell clone are included in the lymphocytic forms of HES. IBD, Inflammatory bowel disease.