Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is mildly enlarged . Mediastinal and hilar contours are unremarkable . There is no pulmonary edema . Streaky opacities in the lung bases likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Streaky opacities in the lung bases likely reflect atelectasis .