Pulmonary Vascular Endothelialitis, Thrombosis, and Angiogenesis in Covid-19

Autopsy examination of lungs from patients who died from SARS-CoV-2 infection, with comparison to the morphologic & molecular features of lungs from patients who died from ARDS secondary to influenza A (H1N1) infection and from uninfected controls. Although a small series, the finding of intussusceptive angiogenesis distinguished the pulmonary pathobiology of Covid-19 from that of equally severe influenza virus infection.