Akdeniz, NadiyeKüçüköner, MehmetKaplan, Muhammet AliUrakçı, ZuhatYerlikaya, HalisKarhan, OğurTeke, FatmaIşıkdoğan, Abdurrahman2022-02-112022-02-112019Akdeniz, N., Küçüköner, M., Kaplan, M. A., Urakçı, Z., Yerlikaya, H., Karhan, O. ve diğerleri. (2019). Rare occurrence of synovial sarcoma originating from dura mater. Turk Onkoloji Dergisi, 34(1), 52-55.1300-7467http://onkder.org/pdf/pdf_TOD_1049.pdfhttps://hdl.handle.net/11468/9143https://search.trdizin.gov.tr/yayin/detay/335165Primary or metastatic dura mater sarcomas are rarely seen, and dural synovial sarcomas are quite rare. Here we report the case of a 60-year-old man who presented with headache, nausea, and vomiting and was found to have a 63×33×40-mm mass with solid and cystic components in parieto-occipital lobe. The mass was resected completely, with no residue detected on postoperative magnetic resonance imagining. On pathological evaluation, a vimentin-, S100-, transducer-like enhancer of split 1-, BCL-2-, and EMApositive and desmin-, PR-, CD99-, PANCK-, and GFAP-negative synovial sarcoma with Ki-67 proliferation index of 12% was detected. Postoperatively, chemotherapy has been started, and it will be followed by radiotherapy. Primary meningeal-derived sarcomas are rare, and differential diagnosis with other meningeal mesenchymal tumors is based on the findings of morphological and immunohistochemical analyses.eninfo:eu-repo/semantics/openAccessDura materRare tumorSynovial sarcomaArticle3415255WOS:0004603170000082-s2.0-8506362725833516510.5505/tjo.2019.1820Q4N/A