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 no pleural effusion or pneumothorax . The lungs appear clear aside from streaky left basilar opacity most likely to represent slight atelectasis . Bony structures are unremarkable .
    OUTPUT:
    
Streaky left basilar opacity most suggestive of minor atelectasis . Short - term follow - up radiographs could be considered if pulmonary symptoms are present and the potential for developing pneumonia is a clinical concern , however .