case_images: PMC4075924_01
case_images: HRCT scan of the chest showing pulmonary ground-glass opacities,
  predominantly in the upper lobes, in A, and in the central regions, in B,
  associated with areas of smooth interlobular septal thickening
  (arrows).
case_images: 1806-3713-jbpneu-40-01-00077-gf01.jpg
case_images: PMC4075924_01_1806-3713-jbpneu-40-01-00077-gf01.jpg
case_images: f01
case_images: A HRCT scan of the chest, performed two weeks after symptom onset, revealed ground-glass opacities, predominantly in the upper and middle lung fields, associated with areas of smooth interlobular septal thickening (Figure 1).
case_images: HRCT scan of the chest performed three weeks after the onset of the
  condition. A comparative analysis of the slices shows significant spontaneous
  improvement in the ground-glass opacities, in relation to the first scan, in
  the upper lung fields, in A, and at the level of the main carina, in B. There
  remain faint ground-glass opacities together with slight reticular infiltrates
  in the subpleural regions, predominantly in the right hemithorax, especially in
  the middle lobe.
case_images: 1806-3713-jbpneu-40-01-00077-gf02.jpg
case_images: PMC4075924_01_1806-3713-jbpneu-40-01-00077-gf02.jpg
case_images: f02
case_images: A second HRCT, performed three weeks after symptom onset, showed near-complete resolution of the ground-glass areas (Figure 2).