Fig. 1
a Chest X-ray findings: small nodular shadow (arrowhead) was observed in the left lower lung field. b Chest computed tomography findings: two well-demarcated solid nodules (arrowheads) were observed in the segment 8 region of the left lower lobe, 9 mm and 7 mm in diameter. c18F-fluorodeoxyglucose positron emission tomography (FDG-PET) findings: no accumulation was observed in pulmonary nodules (arrowheads) or other areas