Fig. 1

Computed tomography (CT) of the patient’s chest showing progression of the pulmonary lesions. a Chest CT performed at a local hospital prior to admission to our hospital showing irregular patchy opacities in the left lower lobe. b Chest CT performed on admission to our hospital showing extension of the patchy opacities in the left lower lobe since the previous scan, and new small patchy opacities in the right middle lobe. c Follow-up chest CT performed after 1 month of corticosteroid treatment showing almost complete resolution of the pulmonary lesions