Of 9 tumors, 7 were shown to harbor a specific EWSR1-CREB1 fusion by reverse transcription-polymerase chain reaction and direct sequencing, with 7 of 10 showing EWSR1 rearrangement by fluorescence in situ hybridization.     ///    Primary pulmonary myxoid sarcoma with EWSR1-CREB1 fusion: a new tumor entity.    ///    Primary pulmonary myxoid sarcoma with EWSR1-CREB1 fusion: a new tumor entity.. 