Rare Occurrence of Synovial Sarcoma Originating from Dura Mater
Nadiye AKDENİZ1,Mehmet KÜÇÜKÖNER1,Muhammet Ali KAPLAN1,Zuhat URAKÇI1,Halis YERLİKAYA1,Oğur KARHAN1,Fatma TEKE2,Abdurrahman IŞIKDOĞAN1
1Department of Medical Oncology, Dicle University, Faculty of Medicine, Diyarbakır-Turkey
2Department of Radiation Oncology, Dicle University, Faculty of Medicine, Diyarbakır-Turkey
DOI : 10.5505/tjo.2019.1820 Primary 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. Keywords : Dura mater; rare tumor; synovial sarcoma