Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes and likely bibasilar atelectasis . No definite focal consolidation is seen . There is no large pleural effusion or evidence of pneumothorax . The cardiac silhouette is top - normal . The aorta is slightly tortuous . There is gaseous distention of the partially imaged bowel , presumed related to recent colonoscopy .
    OUTPUT:
    
Low lung volumes . Gaseous distention of the partially imaged bowel . No evidence of free air .