Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . Mild prominence of the pulmonary vasculature , could represent chronic vascular congestion . There is no pleural effusion or pneumothorax . Mediastinal contours are normal . The heart size is at the upper limits of normal . A left pectoral pacemaker is in place with the leads in the right atrium and right ventricle .
    OUTPUT:
    
No acute cardiopulmonary process .