Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is a small subpulmonic left pleural effusion . There is no pneumothorax or right pleural effusion . New linear atelectasis is present in the left mid lung . Multiple left rib fractures are again seen .
    OUTPUT:
    
1 . No pneumothorax . 2 . New small left pleural effusion .