Case 1 - male, 40 years
Previously healthy nonsmoker. Occupational exposure to chalk dust. For one month fever, arthralgia and hemoptysis. BAL and chest x-ray suggest alveolar hemorrhage. Serum ANCA-antibodies negative. Serum creatinine 93 mmol/l, hematuria of 20 RBC/microscopic field.
Slide 1 = PAS Slide 2 = PASM Slide 3 = Immunofluorescence microscopy of the renal biopsy specimen, staining anti-IgG-FITC (snapshot only)
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