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Related Experiment Videos

Rounded atelectasis

P Batra1, K Brown, K Hayashi

  • 1Department of Radiological Sciences, UCLA School of Medicine, USA.

Journal of Thoracic Imaging
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

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Rounded atelectasis (RA) is a peripheral lung collapse linked to pleural disease, often mistaken for other conditions. Recognizing its specific radiologic signs, like the "comet tail," is key for accurate diagnosis and avoiding unnecessary procedures.

Area of Science:

  • Pulmonology
  • Radiology
  • Pathology

Background:

  • Rounded atelectasis (RA) is a form of peripheral lung collapse associated with pleural disease.
  • While often linked to asbestos exposure, other causes exist.
  • RA is typically an incidental finding in asymptomatic individuals.

Purpose of the Study:

  • To describe the diagnostic features of rounded atelectasis.
  • To highlight the importance of differentiating RA from other pulmonary and pleural diseases.
  • To emphasize the role of advanced imaging in diagnosis.

Main Methods:

  • Review of radiologic findings associated with RA.
  • Comparison of chest radiography, computed tomography (CT), and high-resolution CT.
  • Discussion of clinical presentation and differential diagnoses.

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Main Results:

  • RA presents as a peripheral, mass-like opacity adjacent to thickened pleura.
  • Characteristic findings include volume loss and a "comet tail" sign (curvilinear vessels/bronchi).
  • Atypical presentations of RA have also been described.

Conclusions:

  • Familiarity with RA's classic and atypical imaging features is crucial.
  • Advanced CT techniques improve visualization and diagnostic confidence.
  • Accurate diagnosis of RA prevents unnecessary invasive interventions and surgery.