Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . Streaky opacities in the lung bases likely reflect atelectasis . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Bibasilar streaky opacities , likely atelectasis .