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  • Title: Pulmonary hypertension secondary to left-sided heart disease: a cause for ventilation-perfusion mismatch mimicking pulmonary embolism.
    Author: Au VW, Jones DN, Slavotinek JP.
    Journal: Br J Radiol; 2001 Jan; 74(877):86-8. PubMed ID: 11227784.
    Abstract:
    Ventilation-perfusion (V/Q) scans are commonly performed in patients with suspected pulmonary thromboembolism (PE). V/Q mismatch is typically attributed to PE. We describe a case in which a V/Q scan performed on a patient with advanced hypertrophic obstructive cardiomyopathy showed large areas of V/Q mismatch not due to PE. The mismatch was due to pulmonary hypertension secondary to left-sided heart disease. The pathophysiology is briefly reviewed.
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