• J Ky Med Assoc · Jun 1993

    Case Reports

    Dissecting aortic aneurysm mimicking massive pulmonary embolism.

    • M A Ossorio, S A O'Grady, T M Roy, and C L Fields.
    • Division of Respiratory and Environmental Medicine, University of Louisville School of Medicine, KY 40292.
    • J Ky Med Assoc. 1993 Jun 1;91(6):233-5.

    AbstractThe finding of a massive unilateral segmental defect with normal ventilation upon lung scanning does not always secure the diagnosis of acute pulmonary embolus. We present a patient whose ventilation-perfusion lung scan suggested a significant embolic phenomenon, but who was subsequently found to have compression of her right pulmonary artery by a dissecting aortic aneurysm. Conditions that present with a unilateral perfusion defect merit further evaluation with pulmonary arteriography.

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