Lung lesions caused by COVID-19 in comparison with bacterial pneumonia and influenza pneumonia: pathomorphological features

This review aimed to summarize the literature data regarding pathomorphology of lung lesions in COVID-19 and compare it with bacterial pneumonia caused by influenza virus. The analysis scientific containing studies domestic foreign authors different years related morphology anatomical pathology injury was carried out. Special attention paid devoted obtained between 2019 2021. Based on study, main aspects were identified grouped into blocks depending etiology process. collects summarizes information etiology, pathogenesis stages disease development, outcomes morphological picture during autopsy patients pneumonia, pneumonia. common features differences course, typical findings, most characteristics for each diseases presented table. There is a great similarity findings despite background difference their epidemiology. Most Russian agree that key factor development presence specific receptor-mediated pathway penetration cells respiratory epithelium. According authors, determines severity unfavorable outcome angiopathy microthrombosis pulmonary capillary bed, which aggravate viral