Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided PICC terminates at the cavoatrial junction . There is significant elevation of the right hemidiaphragm . No pleural effusion or pneumothorax is seen . Medial right base opacity on the frontal view , not well seen on the lateral view may represent right hilar vessels underneath the elevated right hemidiaphragm with possible atelectasis . Pneumonia is not entirely excluded given the clinical scenario , however it is felt less likely .
    OUTPUT:
    
Marked elevation of the right hemidiaphragm , new since ___ , but otherwise of uncertain age . Medial right base opacity best seen on the frontal view may represent combination of right hilar vessels underneath the elevated right hemidiaphragm with atelectasis . However , given the clinical scenario reported history , pneumonia is not entirely excluded , however it is felt less likely . The recent prior chest radiograph is not currently available for comparison .