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Case 9. Clinical data. 50-year-old male with prostatic symptomatology PSA serum level-normal Homogenous, enlarged soft prostate No focal changes were revealed ultrasonographically Needle biospy: 12 reprezentative samples 11-21 mm. ???. Striped Basilisc Basiliscus vittatus.
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Clinical data • 50-year-old male with prostatic symptomatology • PSA serum level-normal • Homogenous, enlarged soft prostate • No focal changes were revealed ultrasonographically • Needle biospy: 12 reprezentative samples 11-21 mm
Immunohistochemistry • EMA, AE1-AE3, vimentin-slightly positive • Negative PSA, PAPH, CD 99
fusion SYT-SSX-positive FISH (event. RT-PCR)
Synovial sarcoma • Synovial sarcoma is characterised by specific translocation t(X;18), resulting fusion of gene SYT (18q11) and related genes SSX1 (Xp11.23), resp. SSX2 (Xp11.21). • SYT-SSX1 for bifasic SS • SYT-SSX2 for monophasis SS
Diferential diagnostics • Leiomyosarcoma of the prostate/ leiomyoma • Postoperative spindle cell nodulus • Sarcomatoid TCC • Phylloid tumor of the prostate