Which biopsy findings are characteristic of acute respiratory distress syndrome (ARDS)?

Updated: Mar 27, 2020
  • Author: Eloise M Harman, MD; Chief Editor: Michael R Pinsky, MD, CM, Dr(HC), FCCP, FAPS, MCCM  more...
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A biopsy performed after several days shows the beginning of organization of the intra-alveolar exudate and repair, the proliferative phase of ARDS, which is characterized by the growth of type 2 pneumocytes in the alveolar walls and the appearance of fibroblasts, myofibroblasts, and collagen deposition in the interstitium.

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