The Review of Histopathological Pulmonary Findings of COVID-19: What We Learned from Postmortem Biopsy and Autopsies; Beyond the Horizon.

Abstract

on COV-ID-19-positive and at of the first in the of the disease, days after the of a lymphocytic viral pneumonia, infiltration of the alveolar walls by numerous lymphocytes and edema, and type 2 pneumocyte hyperplasia with cytologic atypia. In 5 other patients who died nearly 20 days after the beginning of the found the his-tological pattern an acute, fibrinous, and organizing pneumonia (AFOP) characterized by an extensive intra-alveolar fibrin deposition called fibrin balls rather than hyaline membranes. is a cortico-sensitive in its subacute fibrin in both alveolar spaces bronchioles endothelial fulminant pre-The