Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes and bibasilar atelectasis . Lateral view is slightly suboptimal due to slight patient motion and under penetration , possibly due to body habitus . No pleural effusion is seen . There is no evidence of pneumothorax . Subtle bibasilar opacities may be due to atelectasis although underlying infectious process is not excluded in the appropriate clinical setting . The cardiac silhouette is top - normal . No evidence of free air is seen beneath the diaphragms .
    OUTPUT:
    
Low lung volumes . Subtle bibasilar opacities may be due to vascular crowding and / or atelectasis , underlying consolidation is not excluded in the appropriate clinical setting . No evidence of free air beneath the diaphragms .