1. A 47-year-old woman with DOE

2. Subpleural and peribronchial multifocal patchy consolidation and reticulation on the lower lung zone

3. Subpleural and peribronchial multifocal patchy consolidation and reticulation on the lower lung zone

4. VAT’s biopsy: diffuse interstitial and intraalveolar process

5. Diffuse interstitial and intraalveolar process Orgrnizing penumonia-like process Intravascular fibrin thrombi Intraalveolar fibrin

6. Diffuse interstitial fibroblastic proliferation and hyaline membrane (arrow) Diffuse alveolar damage (DAD)