Fig. 1.

Baseline chest CT displaying multilobar peripheral consolidations with mixed configuration of ‘reversed halo’ and ‘halo’ signs. This appearance was embedded in areas of consolidation. The described patterns were seen in the anterior and apicoposterior segments of the left upper lobe with a maximum size of 33 × 24 mm (arrowhead) (A). Another well visualized peripheral halo consolidation and central round nodule was seen in the posterior segment of the right lower lobe (28 × 18 mm) (B). Two additional areas of peripheral complete halo and central nodular opacity were seen in the lateral segment of the right lower lobe and lateral segment of the left lower lobe, measuring 29 × 21 mm and 25 × 15 mm, respectively (C).