Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD device is re - demonstrated with single lead terminating in right ventricle . The heart size remains mildly enlarged . Mediastinal and hilar contours are unremarkable , and the pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .