Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is top normal with a left ventricular predominance . The mediastinal and hilar contours are unremarkable . Streaky bibasilar airspace opacities could reflect atelectasis though infection can not be excluded . There is no pleural effusion or pneumothorax . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Streaky bibasilar airspace opacities could reflect atelectasis but infection can not be excluded . Repeat PA and lateral views with improved inspiratory effort is recommended to better assess the lung bases .