Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild lateral left basilar atelectasis / scarring . Slight blunting of the posterior right costophrenic angle may be due to a trace pleural effusion . No evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are stable and unremarkable . Surgical clips are partially seen in the upper abdomen .
    OUTPUT:
    
Slight blunting of the posterior right costophrenic angle could be due to a trace pleural effusion . Mild left basilar atelectasis / scarring .