Fig. 1.

a-c Typical CT features of COVID-19. (a) GGO (b) Mix GGO and consolidation (c) Crazy paving. d-f A 77-year-old female with tuberculosis and epidemiological histroy, presenting with dry cough in fever clinic (d) Initial CT present tuberculosis in upper lobe of left lung. (e) Initial CT present GGO and small to moderate amount of pleural effusion in the left lung. (f) Nine days follow-up CT image present improvement at the same level. g-i A 55-year-old man with epidemiological history, presenting with dyspnea, dry cough and fatigue in fever clinic (g) Initial CT present bilateral diffuse GGO lesions. (h) Two days follow-up CT image present a little improvement at the same lavel. (i) 3D Volume rendering present the distribution of lesions.