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Canadian Respiratory Journal
Volume 4, Issue 4, Pages 221-223
Case Report

Polyarteritis Nodosa and Bronchiolitis Obliterans with Organizing Pneumonia, an Unusual Association

Kaberi Dasgupta,1 A Kevin Watters,2 and Arnold Zidulka1

1Montreal General Hospital, Montreal, Quebec, Canada
2McGill University, Montreal, Quebec, Canada

Copyright © 1997 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Bronchiolitis obliterans and organizing pneumonia (BOOP) is an inflammatory, fibrotic disorder of the small airways, alveoli and pulmonary intersitium. Often idiopathic and usually benign, this condition may cause dyspnea and influenza-like symptoms. Polyarteritis nodosa (PAN) is a small and medium vessel vasculitis, which usually involves the kidney and other viscera but rarely results in vasculitis of the lungs. This is the second case of BOOP associated with PAN reported in the literature. Knowledge of this association is likely to be of value because an undiagnosed vasculitis can rapidly become fatal.