Expression of the NUP98/HOXA9 fusion transcript in the blast crisis of Philadelphia chromosome-positive chronic myelogenous leukaemia with t(7;11)(p15;p15)..     ///    We report the first case with CML expressing the NUP98/HOXA9 fusion transcript.     ///    "Reverse transcriptase polymerase chain reaction identified the NUP98/HOXA9 transcript, suggesting that the NUP98/HOXA9 fusion protein could play a critical role in the progression to blast crisis.. "