Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Mild to moderate cardiomegaly is chronic . The mediastinal contours are otherwise normal . There are no pleural effusions . No pneumothorax is seen . The bony thorax is grossly intact .
    OUTPUT:
    
Chronic cardiomegaly ; no evidence of acute decompensation .