Coronavirus disease 19 (COVID-19), which has recently become a worldwide pandemic with high mortality, causes severe pneumonia. The major routes of transmission of this disease are direct inhalation of respiratory droplets or contact with surfaces contaminated with them. Its definitive diagnosis is made by a real-time PCR test. Radiological methods, especially computed tomography (CT), play an important role in supporting the diagnosis and determining disease stage and complications. In this paper, we report the CT findings of COVID-19 pneumonia at different disease stages in a patient diagnosed with the disease, and we provide a discussion of the relevant literature.