PMC7235428_01
Chest CT images for case 1 showing a small dense shadow in the left lung on day 4 after symptom onset (A,B); bilateral ground-glass opacity, large consolidation, and bilateral pleural effusion on day 9 after symptom onset (C,D).
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F1
On the day of admission, a chest CT scan showed a small dense shadow in the left lung (Figures 1A,B); 5 days later, a reexamination showed that the lung lesions had deteriorated, and patchy ground-glass opacities and large scale consolidation were seen in both lungs with bilateral pleural effusion (Figures 1C,D).
PMC7235428_02
Chest CT images for case 2 showing a round-like mass shadow in the dorsal segment of the lower right lobe with a slight ground-glass opacity on the edge, a strip shadow in the local area of the left lower lobe, and an arc dense under the bilateral pleura on day 3 after symptom onset (A-D).
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F2
Although the patient showed no respiratory symptoms or signs of COVID-19 and a preoperative chest X-ray was normal, a chest CT scan was performed nonetheless the day after the operation given that the patient had close contact with his grandmother who was a COVID-19 patient; the scan showed the presence of viral pneumonia (Figures 2A-D).
PMC7235428_03
Chest CT images for case 3 showing a patchy dense shadow in the posterior part of the left lung with a blurred boundary on day 2 after symptom onset (A,B).
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F3
The CT scan image showed a patchy dense shadow with a blurred boundary in the posterior part of the left lung (Figures 3A,B).
PMC7235428_04
Chest CT images for case 4 showing a large dense shadow with some consolidation in the right lung and a few high-density shadows in the upper lobe of the left lung on day 6 after symptom onset (A,B) and patchy dense shadows mixed with ground-glass opacity in the bilateral upper lobe tip, right middle lobe, and left lower lobe, and air bronchogram inside on day 15 after symptom onset (C,D).
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F4
A chest CT scan showed large consolidation in the right lung and a few high-density shadows in the upper left lung (Figures 4A-D).
PMC7235428_05
Chest CT images for case 5 showing bilateral scattered spots of shadows and consolidation in the upper right lobe on day 3 after symptom onset (A,B).
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F5
Although the patient had no fever or cough, because of a suspicion of contact history with COVID-19 patients (both parents and grandparents were suspected of having COVID-19), a chest CT scan was performed and showed bilateral lung pneumonia with local consolidation (Figures 5A,B).