{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T19:41:40Z","timestamp":1786650100595,"version":"build-2736575974"},"reference-count":8,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,10]]},"abstract":"<jats:p>Gliosarcoma is an uncommon high-grade tumor which constitutes about 2% of all glioblastomas. These tumors have the histological hallmark of a biphasic pattern of high-grade glial and sarcomatous components. The histogenesis of these tumors is controversial. We report a case of primary gliosarcoma in an adult male with leiomyomatous differentiation and discuss the histogenesis as it appears in our case. 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