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Related Experiment Videos

Computed tomography in pulmonary sarcoidosis.

D A Lynch1, W R Webb, G Gamsu

  • 1Department of Radiology, University of California, San Francisco 94143-0628.

Journal of Computer Assisted Tomography
|May 1, 1989
PubMed
Summary

High-resolution CT (HRCT) effectively identifies sarcoidosis lung disease, revealing nodules and density changes that may indicate active alveolitis and respond to therapy. HRCT findings correlate with histology, aiding diagnosis.

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Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Pathology

Background:

  • Sarcoidosis is an inflammatory disease that can affect the lungs.
  • Accurate diagnosis and assessment of disease activity are crucial for patient management.

Purpose of the Study:

  • To evaluate the utility of high-resolution computed tomography (HRCT) in diagnosing pulmonary sarcoidosis.
  • To correlate HRCT findings with other diagnostic modalities and clinical parameters.

Main Methods:

  • Retrospective analysis of HRCT scans from 15 patients with biopsy-proven sarcoidosis.
  • Correlation of HRCT findings with pulmonary function tests, gallium-67 scans, bronchoalveolar lavage, and lung biopsy results.

Main Results:

  • HRCT revealed characteristic features including nodules, septal thickening, and increased lung density.

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  • Patchy increased lung density correlated with active alveolitis on gallium scans.
  • HRCT findings correlated with histological presence of granulomas.
  • Nodules and patchy densities showed partial reversibility after therapy.
  • HRCT was superior to chest X-ray in detecting subtle lung changes.

    • Conclusions:

    • HRCT is a valuable tool for diagnosing pulmonary sarcoidosis, showing characteristic patterns.
    • HRCT findings can suggest active alveolitis and monitor treatment response.
    • HRCT can identify unsuspected lung disease and document reversible components of sarcoidosis.