Mediastinal Emphysema, Giant Bulla, and Pneumothorax Developed during the Course of COVID-19 Pneumonia

The coronavirus disease 2019 pneumonia is a recent outbreak in mainland China and has rapidly spread to multiple countries worldwide.Pulmonary parenchymal opacities are often observed during chest radiography.Currently, few cases have reported the complications of severe COVID-19 pneumonia.We report a case where serial follow-up chest computed tomography revealed progression of pulmonary lesions into confluent bilateral consolidation with lower lung predominance, thereby confirming COVID-19 pneumonia.Furthermore, complications such as mediastinal emphysema, giant bulla, and pneumothorax were also observed during the course of the disease.