Figure 2a. Atypical CT pattern in two patients with ARDSp following bacterial pneumonia. (a) CT image (at level 3) obtained 6 days after intubation, shows patchy IPOnd (arrows) and ground-glass opacification (arrowhead). (b) CT image obtained 8 days following intubation shows that there are multiple bilateral cystic spaces (arrowheads) in the lower zones (level 5). Focal areas of IPO (arrow) and ground-glass opacification are also depicted.