Fig. 5

COVID-19 infection atypically presented by head-cheese pattern (ground-glass attenuation alternating with air trapping): a 48-year-old female COVID-19 patient. A Initial axial chest CT (lung window) revealed multiple sub-pleural ground glass patches (orange arrows) of COVID-19 infection with a nearby medial basal area of air trapping (green circle) … “Head-cheese pattern.” B Follow up axial chest CT after 3 weeks (lung window) revealed healing of the ground-glass patches by curvilinear fibrotic bands (blue arrow) with persistent areas of air trapping