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Papillary meningioma

S Z Stefanko, W M Mackay

    Acta Neuropathologica. Supplementum
    |January 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Papillary meningiomas, a specific subtype, show favorable outcomes post-surgery. The papillary pattern may not always indicate malignancy, suggesting a need for careful evaluation of these brain tumors.

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    Area of Science:

    • Neuro-oncology
    • Surgical Pathology
    • Neurosurgery

    Background:

    • Meningiomas are the most common primary tumors of the central nervous system.
    • Papillary meningioma is a recognized histological subtype with variable clinical behavior.
    • Understanding the prognostic significance of histological patterns is crucial for patient management.

    Purpose of the Study:

    • To describe the clinical and histological features of papillary meningioma.
    • To evaluate the prognostic implications of the papillary pattern in meningioma.
    • To investigate the pathogenetic mechanisms underlying papillary structure formation.

    Main Methods:

    • Retrospective case series analysis of six patients with papillary meningioma.
    • Review of surgical outcomes, including recurrence and metastasis rates.

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  • Histopathological examination to assess features of anaplasia and papillary formation.

    • Main Results:

    • Five of six patients survived long-term (2 months to 14 years) with no recurrence or metastasis.
    • One patient died from an unrelated condition two years post-surgery.
    • Papillary patterns were associated with typical meningioma subtypes; only one case showed clear anaplastic features.

    Conclusions:

    • Papillary meningioma, in the absence of other malignant signs, may not necessarily indicate anaplasia.
    • The papillary pattern is likely a secondary phenomenon, possibly related to vasotropism and perivascular cellular changes.
    • Long-term survival without recurrence is common in this meningioma subtype.