Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to radiograph from ___ , there has been interval resolution of pneumothorax and substantial decreased left pleural fluid . There is left pleural fluid , which probably has redistributed , and persistent compressive atelectasis . Opacity along the left lateral aspect and the lower lung are consistent with patient 's known lung cancer and is better appreciated on the PET - CT from ___ . Again seen is bilateral increased interstitial opacities , likely reflecting lymphangitic spread . Heart size is difficult to assess but likely upper limits of normal . Mediastinal and hilar contours are unchanged . There is no evidence for pneumothorax . Left PleurX catheter tip projects over the left mid hemithorax . Aortic knob calcification appears unchanged .
    OUTPUT:
    
1 . No pneumothorax . 2 . Left pleural effusion , likely unchanged given differences in technique . Left lower lung opacities , likely patient 's known cancer which is better appreciated on prior CT .