Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is similar mild relative elevation of the right hemidiaphragm compared to the left . There is no pleural effusion or pneumothorax . Streaky opacities in the right lower lung suggest minor atelectasis . Otherwise , the lungs appear clear .
    OUTPUT:
    
Streaky right posterior basilar opacities , probably associated with atelectasis , with no definite evidence for pneumonia . However , if symptoms were to persist or pulmonary symptoms are present , then short - term followup radiographs could be considered .