In Case 2, patchy ground-glass opacification and vascular dilatation was seen in the left upper lobe on the CT examination on Day 2 after admission. Re-examination after an interval of 13 days showed resolution of the ground-glass changes, but multiple nodular lesions with a ground-glass halo were seen in the right upper lobe (Fig. 2) . The boy's condition improved after 29 days of antiviral and symptomatic treatment, and he was discharged.
In our experience, there are differences in CT findings between children and adults infected with COVID-19. Children seem to have smaller, mainly ground-glass nodules, and larger consolidations or white-out is rare. The clinical symptoms seem relatively mild in children [2] [3] [4] [5] .