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Pleural effusion associated with pulmonary embolization.

S E Brown, R W Light

    Clinics in Chest Medicine
    |March 1, 1985
    PubMed
    Summary
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    Pulmonary embolism is a frequently overlooked cause of unexplained pleural effusion. Diagnosis and treatment of para-embolic effusions are similar to pulmonary embolism without effusion.

    Area of Science:

    • Pulmonology
    • Thoracic Medicine
    • Diagnostic Imaging

    Background:

    • Pleural effusion of unknown etiology requires a comprehensive diagnostic work-up.
    • Pulmonary embolism (PE) is a critical diagnosis that may be overlooked in patients presenting with pleural effusion.
    • Understanding the characteristics of para-embolic effusions is crucial for accurate diagnosis.

    Purpose of the Study:

    • To highlight pulmonary embolism as a potential cause of unexplained pleural effusion.
    • To describe the variable characteristics of para-embolic effusions.
    • To emphasize the importance of considering PE in the differential diagnosis of pleural effusions.

    Main Methods:

    • Review of clinical presentations and diagnostic findings in patients with pleural effusion.

    Related Experiment Videos

  • Analysis of the biochemical and cellular characteristics of para-embolic effusions.
  • Comparison of treatment protocols for PE with and without associated pleural effusion.
  • Main Results:

    • Para-embolic effusions exhibit highly variable characteristics, often deviating from classical descriptions.
    • Up to 25% of para-embolic effusions can be transudates.
    • Red blood cell counts exceeding 100,000/mm³ occur in less than 20% of cases, and white blood cell counts show wide variability.

    Conclusions:

    • Pulmonary embolism should be a primary consideration in the evaluation of unexplained pleural effusions.
    • The diagnostic criteria for para-embolic effusions are not definitive due to their variability.
    • Treatment for pulmonary embolism with pleural effusion is generally consistent with treatment for PE alone, focusing on anticoagulation.