Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . The upper lungs are clear . Bibasilar atelectasis have improved . There is no pneumothorax or pleural effusion . The osseous structures are unremarkable . Right PICC tip is in the cavoatrial junction
    OUTPUT:
    
No acute cardiopulmonary abnormalities