A multicenter analysis of the FIP1L1-αPDGFR fusion gene in Japanese idiopathic hypereosinophilic syndrome: an aberrant splicing skipping the αPDGFR exon 12

Abstract  To study the clinical characteristics of hypereosionophilic syndrome and chronic eosinophilic leukemia (HES/CEL) in Japan, the clinical data of 29 HES/CEL patients throughout the country were surveyed. Moreover, the involvement