RNA extracted from available fresh-frozen and formalin-fixed paraffin-embedded human ASPS tumors were analyzed for ASPSCR1-TFE3 fusion transcript expression using reverse transcription-PCR and by angiogenesis oligomicroarrays with immunohistochemical confirmation.     ///    ASPSCR1-TFE3 fusion transcripts were identified in 16 of 18 ASPS samples. 