Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are within normal limits . Attenuation of pulmonary vascular markings towards the apices with mild lung hyperinflation is compatible with underlying emphysema . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is detected . No subdiaphragmatic free air is seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Emphysema . No subdiaphragmatic free air .