Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single lead left - sided pacemaker is seen with lead extending to the expected position of the right ventricle . Cardiac and mediastinal silhouettes are stable with the cardiac silhouette mildly enlarged . No overt pulmonary edema is seen . No pleural effusion or pneumothorax is seen . There is no focal consolidation .
    OUTPUT:
    
No acute cardiopulmonary process . Persistent mild cardiomegaly .