Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of left chest tube . Previously - seen pneumothorax has slightly decreased and remaining small pneumothorax has apical and minimal lateral component . The left lung has re expanded and minimal lingular atelectasis is seen . There is minimal left pleural effusion . Convex right scoliosis is again seen .
    OUTPUT:
    
Minimal left pneumothorax . Improved left lung volume with minimal left pleural effusion .