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Supratentorial ependymomas: computed tomographic and pathologic correlations.

P Van Tassel, Y Y Lee, J M Bruner

    The Journal of Computed Tomography
    |April 1, 1986
    PubMed
    Summary
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    Computed tomography (CT) aids in diagnosing ependymomas, revealing common features like intraventricular location and calcifications. CT can also show tumor spread and identify mixed histology, crucial for treatment planning.

    Area of Science:

    • Neuro-oncology
    • Neuroradiology
    • Surgical Pathology

    Background:

    • Ependymomas are a significant group of primary brain tumors.
    • Accurate diagnosis and characterization are vital for effective management.
    • Computed tomography (CT) is a key imaging modality in neuro-oncology.

    Purpose of the Study:

    • To correlate computed tomography (CT) findings with surgical pathology in ependymomas.
    • To identify characteristic CT features of ependymomas.
    • To investigate the utility of CT in detecting tumor spread and mixed histology.

    Main Methods:

    • Retrospective analysis of 52 ependymoma cases.
    • Correlation of pre- and postoperative CT scans with surgical pathology.
    • Review of pathology reports for cases lacking CT studies.

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    Main Results:

    • Common CT findings include para- or intraventricular location, cystic areas, and calcifications.
    • CT demonstrated subependymal spread in one case.
    • Mixed ependymoma with oligodendroglioma (4 cases) and with oligodendroglioma and astrocytoma (2 cases) were identified.
    • Microscopic calcifications were more frequent in ependymomas mixed with oligodendroglioma.

    Conclusions:

    • CT imaging provides valuable insights into ependymoma characteristics, including location, cystic changes, and calcifications.
    • CT can aid in identifying tumor spread and mixed histological subtypes.
    • These findings support the role of CT in the preoperative assessment and diagnosis of ependymomas.