Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is top normal in size . The mediastinal and hilar contours are within normal limits . There is a nonspecific area of increased opacity projecting over the cardiac silhouette on the lateral view , which abuts a slightly anteriorly displaced right major fissure . Lungs are otherwise clear . There are no pleural effusions or pneumothorax . Note is made of a healed right upper rib fracture . There are degenerative changes along the lower thoracic spine .
    OUTPUT:
    
Right middle lobe opacity , which may represent atelectasis or pneumonia . Short radiographic followup within six to eight weeks is recommended to document resolution , in order to exclude a neoplastic process . These findings were discussed with Dr . ___ by Dr . ___ ___ telephone on ___ at 11 :00 AM , time of discovery .