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[Gliosarcoma--a case report].

M Ide, M Jimbo, M Yamamoto

    No Shinkei Geka. Neurological Surgery
    |January 1, 1987
    PubMed
    Summary
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    This study reports a rare case of a brain tumor with both meningioma and glioblastoma multiforme features. The mixed tumor presented with neurological deficits and was surgically resected.

    Area of Science:

    • Neuro-oncology
    • Neurosurgery
    • Pathology

    Background:

    • A 60-year-old woman presented with personality changes and left-sided motor weakness.
    • Neurological examination revealed left hemiparesis, papilledema, and severe dementia.

    Observation:

    • CT scan and angiography identified a large right parietoccipital mass with abnormal vascularity.
    • Surgical resection revealed a tumor attached to the dura, with apparent meningioma characteristics superficially.
    • The tumor exhibited a "sunburst" pattern, with feeding vessels from the middle meningeal artery.

    Findings:

    • Histopathological analysis showed a biphasic tumor with superficial meningioma-like tissue and deeper glioblastoma multiforme.
    • The malignant mesenchymal component displayed fibrosarcomatous features.

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  • The deeper portion showed marked astrocytic anaplasia, endothelial proliferation, and perinecrotic pseudopalisading.

    • Implications:

    • This case highlights the diagnostic challenges of mixed-origin brain tumors.
    • Understanding the biphasic nature is crucial for accurate diagnosis and treatment planning.
    • Further research into the pathogenesis of such mixed tumors is warranted.