Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta remains tortuous . Mediastinal contours are otherwise unremarkable . There is mild pulmonary vascular congestion . Minimal bibasilar streaky opacities could reflect atelectasis . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Mild bibasilar atelectasis with mild pulmonary vascular congestion .