Chest CT Findings in the Protracted Period of a Critical Patient with COVID-19

There are few documents describing the characteristics of the lungs in the prolonged period of severe new coronavirus pneumonia. This case describes an 67-year-old man who has been tested positive for COVID-19, and who quickly progressed to severe illness. After mechanical ventilation, ECMO and antiviral treatments, his condition gradually improved. Through lung CT examination, we analyzed the changes in lung characteristics at different stages of the patient, especially the protracted period, which showed “watermelon lung” changes. These characteristics may help us adjust the treatment strategy.