Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . Subtle left base opacity is most likely due to atelectasis and overlying vascular structures although a subtle consolidation is not excluded in the appropriate clinical setting . There is no pleural effusion or pneumothorax . No overt pulmonary edema is seen . The cardiac silhouette is mild to moderately enlarged . The aorta is calcified and tortuous .
    OUTPUT:
    
Hyperinflated lungs . Cardiomegaly . No pulmonary edema . Subtle opacity at the left lung base most likely due to atelectasis and / or overlying vascular structures although early consolidation is not excluded in the appropriate clinical setting .