Diffuse alveolar hemorrhage (DAH) is a life-threatening disorder characterized clinically by the presence of hemoptysis, falling hematocrit, diffuse pulmonary infiltrates and hypoxemic respiratory failure. It refers to bleeding that originates in the pulmonary microvasculature instead of the parenchyma or bronchial circulation. DAH should be considered a medical emergency due to…
Pulmonary capillaritis presenting as diffuse alveolar hemorrhage is a rare manifestation in patients with IgA nephropathy. A 20-year-old male with hemodialysis dependent, end-stage renal failure presented with recurrent hemoptysis and respiratory failure. A histologic diagnosis of pulmonary capillaritis was established by transbronchial lung biopsy. He was successfully treated with intravenous…
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