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Pulmonary vasculitis: CT features.

James G Ravenel1, H Page McAdams

  • 1Department of Radiology, Medical University of South Carolina, Charleston, South Carolina 29425, USA. ravenejg@musc.edu

Seminars in Respiratory and Critical Care Medicine
|August 10, 2005
PubMed
Summary
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Pulmonary vasculitides are diverse inflammatory lung disorders. Computed tomography (CT) findings are often nonspecific, requiring clinical correlation for accurate diagnosis of these conditions.

Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Rheumatology

Background:

  • Pulmonary vasculitides encompass a range of inflammatory conditions affecting lung blood vessels.
  • These can be primary to the lungs or part of systemic diseases.
  • Both types can involve different sizes of pulmonary vessels.

Purpose of the Study:

  • To review the characteristic computed tomography (CT) features of primary pulmonary and systemic vasculitides.
  • To highlight the role of CT in differentiating between various causes of vasculitis.
  • To emphasize the nonspecific nature of common CT findings.

Main Methods:

  • Review of computed tomography (CT) imaging findings in pulmonary vasculitides.
  • Correlation of CT features with clinical presentation, physical examination, and laboratory data.

Related Experiment Videos

  • Discussion of differentiating CT characteristics for various vasculitic entities.

    • Main Results:

    • Common CT findings include ground-glass opacity, consolidation, and centrilobular nodules, often due to pulmonary hemorrhage.
    • CT appearances show significant overlap across different vasculitis groups.
    • CT findings alone are often insufficient for definitive diagnosis.

    Conclusions:

    • CT is a valuable tool in evaluating pulmonary vasculitides but findings are nonspecific.
    • Diagnosis requires integrating CT results with clinical and laboratory information.
    • CT can aid in distinguishing between primary pulmonary and systemic vasculitides in certain contexts.