Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . Severe cardiomegaly and pulmonary vascular re-distribution are chronic . No overt pulmonary edema is detected . There are no focal consolidations , pleural effusion or pneumothorax .
    OUTPUT:
    
Stable marked cardiomegaly , without acute abnormality .