Deletion, rather than translocation, was found to be the main mechanism for TMPRSS2-ERG gene fusion (81 vs 19%).     ///    "In this study, we used formalin-fixed paraffin-embedded tissue and evaluated both TMPRSS2-ERG and TMPRSS2-ETV1 fusions by reverse transcription polymerase chain reaction (RT-PCR) and fluorescence in situ hybridization (FISH). "