Fig. 2.

A 37-years-old man, who presented to the emergency department with cough and fever. An immediate CT scan was performed due to suspected pulmonary coronavirus disease 2019 (COVID-19) manifestation. The axial minimum intensity projection (MinIP) reconstruction (left side) shows focal subtle ground-glass opacity (GGO) in the left lower lung lobe (arrowhead) suspicious for early stage pulmonary COVID-19, which was missed on axial multiplanar reformat (MPR) series (right side) by 6/6 readers in this study. Real-time reverse transcription polymerase chain reaction (RT-PCR) confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.