Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly with tortuous thoracic aorta is unchanged from prior examination . Hilar contours are unremarkable . A left - sided dual - lead pacer remains in unchanged position . The lungs are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Severe cardiomegaly , unchanged from the prior exam . Otherwise , no acute cardiopulmonary abnormality .