Wegener's Granulomatosis Associated with Diffuse Pulmonary Hemorrhage

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Abstract
The authors report a case of Wegener's granulomatosis with the unusual manifestation of diffuse pulmonary hemorrhage. A 58-year-old man complained of bloody sputum and fever. Chest X-ray films showed multiple nodular shadows in both lung fields. He was diagnosed as having Wegener's granulomatosis by transbronchial lung biopsy, which revealed necrotizing granulomatous inflammation with necrotizing vasculitis. Despite treatment with cyclophosphamide and prednisolone, his condition rapidly deteriorated. An extensive diffuse alveolar shadow appeared in both lung fields in chest X-ray films, anemia became worse, and he died of respiratory failure. Autopsy revealed diffuse alveolar hemorrhage with necrotizing capillaritis in addition to the typical pathological findings in Wegener's granulomatosis. The capillaritis was characterized by neutrophilic infiltration of alveolar septa, and fibrin thrombi in alveolar capillaries. Diffuse pulmonary hemorrhage is uncommon in Wegener's granulomatosis. However, once diffuse pulmonary hemorrhage occurs, the respiratory condition rapidly deteriorates and is life-threatening. Therefore, accurate diagnosis and appropriate treatment are required.

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