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CT patterns in histopathologically complex cavernous hemangiomas.

J Ahmadi, C A Miller, H D Segall

    AJNR. American Journal of Neuroradiology
    |May 1, 1985
    PubMed
    Summary
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    Computed tomographic (CT) scans and microscopic analysis revealed that some cavernous hemangiomas contain multiple cerebrovascular malformations, increasing the risk of hemorrhage.

    Area of Science:

    • Neurology
    • Radiology
    • Pathology

    Background:

    • Cavernous hemangiomas are vascular malformations in the brain.
    • Coexistence of multiple cerebrovascular malformations is rare.

    Purpose of the Study:

    • To correlate computed tomographic (CT) findings with histopathological results in cavernous hemangiomas.
    • To investigate the occurrence and implications of multiple cerebrovascular malformations within a single lesion.

    Main Methods:

    • Retrospective analysis of 10 histologically verified cavernous hemangiomas from nine patients.
    • Correlation of computed tomographic (CT) imaging data with detailed microscopic examination of lesion pathology.

    Main Results:

    • In 40% of cases (4 of 10 lesions), multiple types of cerebrovascular malformations (arteriovenous malformations, venous malformations, telangiectasis) were found within a single cavernous hemangioma.

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  • Hemorrhage (recent or old) was present in all four cases with combined malformations.
  • CT findings were nonspecific and did not differentiate these complex lesions from other intracranial pathologies.

    • Conclusions:

    • Cavernous hemangiomas can rarely present as combined cerebrovascular malformations.
    • The presence of multiple malformations within a cavernous hemangioma is associated with hemorrhage.
    • CT imaging alone is insufficient to diagnose complex vascular malformations within cavernous hemangiomas.