Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged but stable . A left - sided pacing device remains in unchanged position , with 3 leads terminating in the right ventricle , right atrium and coronary sinus . Lungs are well expanded and clear . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
Stable cardiomegaly . No acute cardiopulmonary process .