Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No pleural effusion , pneumothorax or focal airspace consolidation . Heart is normal size . Marked dilation of the main pulmonary artery is grossly unchanged from ___ , subtle differences are likely from technique . Hilar contours are otherwise unremarkable . A left pectoral pacemaker is again noted with leads terminating in the right atrium and right ventricle . There is no evidence of lead fracture or disruption .
    OUTPUT:
    
No acute cardiopulmonary process .