The karyotype was 46,XX,t(8;9)(p11;q33)[20] and the CEP1/FGFR1 fusion transcript between CEP1 exon 38 and FGFR1 exon 9 was detected.     ///    A biphenotypic transformation of 8p11 myeloproliferative syndrome with CEP1/FGFR1 fusion gene.. 