Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There are slightly low lung volumes . Left mid lung linear atelectasis / scarring is again seen . There may be very minimal interstitial edema . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Possible minimal central interstitial edema . Stable left mid lung linear atelectasis / scarring .