Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The heart is moderately enlarged . There is a small right pleural effusion . Biapical pleural parenchymal scarring noted . Mediastinal contour is notable for an unfolded thoracic aorta . There is no pneumothorax . Bony structures appear intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Small right pleural effusion . Mild cardiomegaly . No definite signs of pneumonia or CHF .