Semin Respir Crit Care Med 2003; 24(4): 427-436
DOI: 10.1055/s-2003-42377
Copyright © 2003 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.: +1(212) 584-4662

Pulmonary Vasculitis: CT Features

James G. Ravenel1 , H. Page McAdams2
  • 1Department of Radiology, Medical University of South Carolina, Charleston, South Carolina
  • 2Department of Radiology, Duke University Medical Center, Durham, North Carolina
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Publication History

Publication Date:
18 October 2003 (online)

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ABSTRACT

The pulmonary vasculitides are a heterogeneous group of inflammatory disorders that may be primarily localized to the pulmonary vasculature or be systemic in nature. The primary pulmonary vasculitides usually affect small vessels, whereas the systemic vasculitides can involve any size pulmonary vessels. For all types of vasculitis, there is a high degree of overlap within groups in regard to their appearance at computed tomography (CT). The most common CT findings are the result of either diffuse or focal pulmonary hemorrhage, are nonspecific, and include ground-glass opacity, consolidation, and small centrilobular nodules. Therefore, the CT findings must be considered in concert with the history, physical examination, and laboratory examination when a specific diagnosis is sought. This review will discuss the typical CT features of both the systemic and the primary pulmonary vasculitides, drawing a distinction where CT is helpful in differentiating among the various causes.

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