Fig. 1

Chest computed tomography images at different time-points. (A) A new mixed ground-glass nodule was found in the left upper lobe (13.1 mm×10.9 mm) on October 27, 2023. (B) On November 11, 2023, after 7 days of treatment with levofloxacin and sodium chloride injection, the nodule increased in size (22 mm×18 mm). (C) On December 15, 2023, after one month of oral prednisone acetate, the nodule decreased (17 mm×16 mm), and the ground-glass appearance significantly lightened. (D) The pulmonary nodule had disappeared on March 29, 2024