Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Streaky left basilar opacity is likely atelectasis . Lungs are otherwise clear . Probable coronary artery stent is again noted . Surgical clips are projected over the mediastinum and in the right upper quadrant as before .
    OUTPUT:
    
No definite acute cardiopulmonary process .