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Meningioma cysts.

C Worthington, J L Caron, D Melanson

    Neurology
    |December 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Cystic intracranial meningiomas present with varied symptoms and imaging findings, often leading to misdiagnosis. Histological analysis is crucial for accurate diagnosis of these brain tumors.

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    Area of Science:

    • Neurosurgery
    • Neuropathology
    • Neuroradiology

    Background:

    • Intracranial meningiomas are common primary brain tumors.
    • Cyst formation within meningiomas is a less common but significant presentation.
    • These cystic lesions can mimic other intracranial pathologies.

    Purpose of the Study:

    • To analyze the clinical, radiological, and pathological features of intracranial meningiomas with cyst formation.
    • To highlight the diagnostic challenges and potential pitfalls in preoperative assessment.
    • To emphasize the importance of histological examination for definitive diagnosis.

    Main Methods:

    • Retrospective review of six cases of intracranial meningioma with cyst formation.
    • Analysis of clinical presentations, neurological examinations, and patient histories.

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  • Evaluation of neuroimaging findings (CT, angiography) and histopathological results.

    • Main Results:

    • Common manifestations included focal neurologic deficits, seizures, headache, and personality changes.
    • CT scans often showed cystic, enhancing supratentorial lesions.
    • Preoperative diagnosis was challenging, with accurate diagnosis in only half of the studied cases.
    • Histopathology confirmed syncytial meningiomas, with xanthochromic, acellular, proteinaceous cyst fluid.

    Conclusions:

    • Cystic intracranial meningiomas exhibit diverse presentations and imaging characteristics.
    • Preoperative misdiagnosis is common due to the varied appearance and potential mimicry of other lesions.
    • Histopathological tissue analysis is essential for accurate diagnosis of all cystic, enhancing brain lesions.