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Related Experiment Videos

Malignancy-associated serosanguinous pleural effusions.

W L Broghamer, M E Richardson, S E Faurest

    Acta Cytologica
    |January 1, 1984
    PubMed
    Summary

    Bloody pleural effusions in cancer patients often indicate inflammation, not just cancer spread. This finding is crucial for diagnosing thoracic cancers and understanding effusion causes.

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    Area of Science:

    • Cytopathology
    • Oncology
    • Pulmonology

    Background:

    • Pleural effusions are common in cancer patients.
    • The presence of blood in pleural effusions can complicate diagnosis.

    Purpose of the Study:

    • To investigate the cytologic and gross characteristics of pleural effusions in cancer patients.
    • To determine the association between bloody effusions and underlying causes, including malignancy and inflammation.

    Main Methods:

    • Review of 786 pleural effusion cytologic preparations from 495 patients.
    • Analysis of 312 specimens from 172 cancer patients.
    • Correlation of cytologic findings with histologic confirmation of thoracic cancer.

    Main Results:

    • Approximately 50% of paraneoplastic effusions were sanguinous (bloody).
    • In 145 patients with confirmed thoracic cancer, 64% had positive pleural effusions cytologically.
    • Of these positive specimens, 71% were macroscopically bloody.
    • Bloody effusions were frequently associated with acute inflammatory reactions, irrespective of pleural invasion.

    Conclusions:

    • The presence of blood in pleural effusions, even in cancer patients, is often linked to inflammatory processes.
    • Cytologic examination of pleural effusions is valuable for diagnosing thoracic malignancies.
    • Distinguishing between neoplastic and inflammatory causes of bloody effusions is critical for patient management.

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