期刊
AMERICAN JOURNAL OF CLINICAL PATHOLOGY
卷 133, 期 3, 页码 380-387出版社
OXFORD UNIV PRESS INC
DOI: 10.1309/AJCPXY17SULQKSWK
关键词
Novel influenza A virus; H1N1 virus; Swine flu; Autopsy; Fatal outcome; Lung pathology; Diffuse alveolar damage; Bronchopneumonia; Bacterial; Oseltamivir (Tamiflu)
类别
Although novel influenza A (H1N1) virus infection has assumed pandemic proportions, there are few reports of the pathologic findings. Herein we describe the pathologic findings of novel influenza A (H1N1) infection based on findings in 2 autopsy cases. The first patient, a 36-year-old man, had flu-like symptoms; oseltamivir (Tamiflu) therapy was started 8 days after onset of symptoms, and he died on day 15 of his illness. At autopsy, the main finding was diffuse alveolar damage with extensive fresh intra-alveolar hemorrhage. The second patient, a 46-year-old woman with alcoholism, was found unresponsive in a basement and brought to the hospital intoxicated and confused. Her condition deteriorated rapidly, and she died 4 days after admission. The main autopsy finding was acute bronchopneumonia with gram-positive cocci, intermixed with diffuse alveolar damage. The pathologic findings in these contrasting cases of novel influenza A (H1N1) infection are similar to those previously described for seasonal influenza. The main pathologic abnormality in fatal cases is diffuse alveolar damage, but it may be overshadowed by an acute bacterial bronchopneumonia.
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