The expression of EWS-FLI1/ERG mRNA were detected in 20 cases of ES/pPNETs(80.0%), No other fusion transcripts were detected.

• 4例腺泡状软组织肉瘤均为ASPL-TFE3融合基因mRNA阳性表达。 运用CISH技术在66.；7%25的(10/15)的10例骨外ES/pPNETs中检测到EWS基因易位阳性信号；结果与本组病例中特异性易位融合基因的检测结果相一致。