Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . Mildly elevated right hemidiaphragm is again noted with mild bibasilar atelectasis . Subtle ground - glass opacity is better appreciated on prior CT at the left lung base and may represent an early pneumonia . Deformity is seen involving the right posterior sixth rib is compatible with a chronic injury . There is no pneumothorax , or pleural effusion .
    OUTPUT:
    
1 . Subtle ground - glass opacity in the left lung base is better appreciated on same - day CT abdomen pelvis , difficult to exclude a developing pneumonia . 2 . Chronic right sixth rib deformity .