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Related Experiment Videos

Orbital pneumosinus dilatans.

G A Lloyd

    Clinical Radiology
    |July 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Pneumosinus dilatans, an abnormal sinus dilation, can cause exophthalmos when affecting orbital walls. Recognizing this condition is crucial for detecting associated meningioma or fibro-osseous disease.

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    Area of Science:

    • Radiology
    • Ophthalmology
    • Neurosurgery

    Background:

    • Pneumosinus dilatans is abnormal dilatation of paranasal sinuses.
    • It commonly affects the sphenoid sinus, often linked to meningioma.
    • Orbital wall involvement is less frequent but significant.

    Purpose of the Study:

    • To report on cases of pneumosinus dilatans affecting orbital walls.
    • To highlight the association with meningioma and fibro-osseous disease.
    • To emphasize the diagnostic importance for radiologists.

    Main Methods:

    • Case series analysis of six patients with exophthalmos.
    • Review of imaging findings (plain radiography, CT, MRI).
    • Correlation with clinical presentation and pathology.

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    Main Results:

    • Six patients presented with unilateral or bilateral exophthalmos.
    • Affected sinuses included frontal, ethmoid, and maxillary.
    • Three cases were associated with meningioma, and three with fibro-osseous disease.

    Conclusions:

    • Pneumosinus dilatans of orbital walls can cause exophthalmos.
    • It may be associated with meningioma or fibro-osseous disease.
    • Radiologists should consider soft-tissue imaging for potential meningioma detection.