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Intracranial chondromas

M Sarwar, L E Swischuk, M M Schecter

    AJR. American Journal of Roentgenology
    |December 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Intracranial chondromas, rare tumors from cartilage rests, often cause lower cranial nerve palsy. Imaging reveals calcification and bone destruction, aiding diagnosis.

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    Area of Science:

    • Neurology
    • Oncology
    • Radiology

    Background:

    • Intracranial chondromas are rare tumors arising from ectopic cartilaginous rests.
    • They typically occur at the sphenoethmoidal and sphenooccipital synchondroses.

    Purpose of the Study:

    • To report four new cases of intracranial chondromas.
    • To add to the existing literature on these rare lesions and their clinical presentation and imaging characteristics.

    Main Methods:

    • Review of four new cases of intracranial chondromas.
    • Analysis of clinical symptoms, radiological findings (angiography, pneumoencephalography, radionuclide brain scan, computed tomography), and pathological origins.

    Main Results:

    • The study adds four cases to the 122 previously reported intracranial chondromas.

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  • Common symptoms include lower cranial nerve palsy, proptosis, and visual impairment.
  • Radiological findings frequently show calcification (over 60%) and bone destruction.
  • Imaging modalities like CT are useful for assessing intracranial extension.

    • Conclusions:

    • Intracranial chondromas require a high index of suspicion due to their rarity and potential for significant neurological deficits.
    • Multimodality imaging is crucial for diagnosis and management planning.
    • Associated aneurysms, though rare, can be a feature.