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Gliosarcoma Invading the Temporal Bone, Temporalis Muscle, and Skull Base
Khalid T Alghamdi1, Alaa A Ashqar2, Ahmad Alamoudi3
1Neurosurgery, King Faisal Specialist Hospital and Reseach Centre, Riyadh, SAU.
Abstract:
Gliosarcoma (GS) is a primary central nervous system tumor. It is an unusual type of glioblastoma multiforme (GBM) and rarely invades the skull base. It has a biomorphic tissue pattern with rapid alternation zones of glial and mesenchymal differentiation. We report the case of a 62-year-old male who presented with a one-month history of unsteady gait associated with dizziness. Brain MRI showed a right temporal mass that invaded the skull base with perilesional edema and a significant mass effect on the right lateral ventricle. The patient underwent a right-sided frontotemporal craniotomy with gross total resection. The pathology confirmed the diagnosis of GS. Postoperatively, the patient had an uneventful recovery with no complications and was discharged two days post-surgery.
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