Patients Patients Patients Patients Patients Patients Patients
Lung pathologic findings Patient 1 Patient 2 Patient 3 Patient 4 Patient 5 Patient 6 Patient 7
Interstitial/alveolar edema No lung tissue NI Present NI NI No lung tissue NI
Capillary microthrombi Present NI Present NI NI
Desquamation Present Present Present Present Present
Hyaline membrane formation
Present
Present
Present
Present
NI
Hyaline membrane organization NI NI Present NI NI
Type II pneumocyte proliferation Present Present NI Present Present
Cytopathic effect Present Present NI NI NI
Interstitial cell increase Present Present Present Present Minimal
Septal collagen increase NI NI NI NI Present
Septal thickening Present Present Present Present Present
Mononuclear cell increase Minimal Present NI Minimal NI
Pathologic diagnosis DAD (Epithelial and vascular) DAD (Epithelial) DAD (Epithelial and vascular) DAD (Epithelial) DAD (vascular and fibrotic)