Figure 4.

(a) Baseline chest X-ray and (b) two-week follow-up chest X-ray of an 84-year-old man with a history of COVID-19, re-presenting to the emergency department 4 days post-discharge with hypoxia and breathlessness. Note progressive consolidation and architectural distortion in the lower lobes occurring in the interval between the two films. (c,d) Axial unenhanced CT images of the chest in the same patient. Note peripheral consolidation with peri-lobular pattern (blue arrows) and bronchocentric ground-glass opacification with traction bronchiectasis (red arrows), architectural distortion (white arrow) with associated volume loss as seen by posterior retraction of the interlobar fissures (yellow arrows).