case_images: PMC5790670_01
case_images: CT scan of the chest with lung window settings at the level of the lower lobes, showing a soft-tissue density nodule located in the left lower lobe and surrounded by a halo of ground-glass opacity (the halo sign).
case_images: 1806-3713-jbpneu-43-01-00004-gf1.jpg
case_images: PMC5790670_01_1806-3713-jbpneu-43-01-00004-gf1.jpg
case_images: f1
case_images: A CT scan of the chest showed a nodule with the halo sign in the left lower lobe (Figure 1).