Clinicopathological diagnosis of diffuse alveolar hemorrhage

Zhonghua yi xue za zhi
F FangC Wang

Abstract

To improve knowledge about the clinical and pathological features of diffuse alveolar hemorrhage (DAH). Six cases DAH with intact clinical and pathological data were retrospectively analyzed during the period from May 1999 to May 2015 in Beijing Hospital. There were altogether 2 males and 4 females, with age ranging from 32 to 68 years (mean 58.8 years). Specimens were obtained by autopsy (3 cases), open lung biopsy (2 cases) and renal biopsy (2 cases), including 1 case of open lung biopsy in 2003, renal biopsy in 2012. Clinically, the patients presented with cough, shortness of breath and dyspnea, including 5 cases of hemoptysis, 4 cases of fever, 3 cases of skin and mucosa bleeding, 2 cases of gross hematuria, 2 cases of microscopic hematuria, 3 cases of renal functional impairment. A total of 5 cases had different levels of elevated erythrocyte sedimentation rate and C-reactive protein, 6 cases had moderate anemia, hypoxemia, diffuse infiltrates with alveolar filling in chest CT. Serum antineutrophil cytoplasmic antibody was positive in 3 cases, anti-glomerular basement membrane antibody was present in 1 case. Pathological diagnosis: 2 cases of Granulomatosis with polyangiitis (GPA), 2 cases of Microscopic polyangiitis (MPA)...Continue Reading

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