Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is mildly enlarged but stable in size . Pulmonary vascularity is normal . Left hemidiaphragm remains mildly elevated with adjacent linear area of atelectasis or scarring . No focal areas of consolidation have developed to suggest an acute pneumonia , and there are no pleural effusions .
    OUTPUT:
    
Elevated left hemidiaphragm with adjacent left basilar scar or atelectasis .