Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is borderline enlarged . The mediastinal and hilar contours are unremarkable , and there is no pulmonary vascular congestion . Streaky opacities in the lung bases may reflect atelectasis . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes limit assessment of the lung bases . Streaky bibasilar opacities likely reflect atelectasis . If there is continued concern for infection , then repeat PA view with improved inspiratory effort is suggested .