Fig. 2.

Thin-slice CT before and after the onset of DILD. Prior to the onset of DILD (a), a shadow of the primary lesion was observed in the left upper lobe of the lung. No abnormal shadow was seen in the lung field. After the patient developed DILD (b), the primary lesion was observed to be shrinking. However, ground-glass opacities and infiltrations were seen spreading on both sides. CT computed tomography, DILD drug-induced interstitial lung disease