Figure 2.

Diffuse bilateral infiltrations on plain X-ray due to alveolar hemorrhage as occurring in Wegener's granulomatosis, micorscopic polyangiitis and Churg-Strauss-syndrome. In order to verify that infiltrations are due to alveolar hemorrhage, bronchoalveolar lavage is required.

Holle et al. Arthritis Research & Therapy 2011 13:224   doi:10.1186/ar3307
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