Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . The lung volumes are low . There are bibasilar opacities , left greater than right as well as a small left pleural effusion . There is no evidence of pneumothorax .
    OUTPUT:
    
Low lung volumes . Bibasilar opacities , left greater than right which could represent atelectasis or consolidation . Small left pleural effusion . Recommend PA and lateral radiograph with good inspiration for better comparison to the prior examination .