Hi, we have a case with increasing numbers of eosinophils (from 4% last year to 12% of the CD45+ cells) but no sign of allergy or churg-strauss. Are there any markers for eosinophilic leukemia? In addition the 12 year old patient has very low expression of the gamma chain (CD132) and had a very low expression of the IL-2 and IL-6 receptor which is higher this year compared to last year. Any suggestions what to measure? Thanks Ruedi Dr. Ruedi K Braun Pneumology Internal Medicine IV Jena, TH 07740 Germany
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