Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size and cardiomediastinal contours are normal . Lung volumes are very low and linear bibasilar opacities are most consistent with atelectasis . No pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes with linear bibasilar opacities most consistent with atelectasis , though pneumonia can be considered in the appropriate clinical setting .