[Unusual histopathological picture of acute lung injury in different stages of resorption with predominance of organizing pneumonia in a young man with influenza A (H1N1)]

Abstract

In this case report the authors describe histomorphological findings of acute lung injury with laboratory-confirmed influenza type A(H1N1) pneumonia leading to the death of a 30 year-old unvaccinated man after 27 days of hospitalisation. Histologically all three types of acute lung injuries were unusually present (diffuse alveolar damage, acute interstitial pneumonia, organizing pneumonia) in different phases of resorption and reparation with transition to extensive fibrosis.

Keywords: influenza - organizing pneumonia - fibrosis - pneumocytes hyperregeneration..