Fig. 2

Dynamic changes of imaging, tumor markers and treatment duration. Sixteen months ago, a new small paraspinal nodule in the right lower lung was observed, and there was increased consolidation compared to that in previous scans (A1, A2). Three months ago, bilateral interstitial changes with increased exudation, thickened bronchial walls, and a small amount of pleural effusion on the right side were observed (B1, B2). One month prior, there was significant progression of right pleural effusion (C1, C2). Chest CT after admission showing bilateral pulmonary interstitial lesions with moderate pleural effusion on the right side and atelectasis in the right lower lobe (D1, D2). Three weeks after admission (before thoracic puncture and drainage), the extent of major interstitial lesions in both lungs increased, and there was a significant increase in pleural fluid on the right side (E1, E2)