Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD device with single lead terminating in the right ventricle is re - demonstrated . There is mild enlargement of cardiac silhouette , unchanged . Mediastinal and hilar contours are normal , and the lungs are clear . There is no pulmonary edema . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .