Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates an unchanged cardiac silhouette and tracheostomy , similar in position . Lung volumes are slightly low , with prominence of the hila bilaterally . This is similar in appearance compared to ___ . No new focal consolidation , pleural effusion , or pneumothorax is seen .
    OUTPUT:
    
No new focal consolidation , pleural effusion , or pneumothorax . Low lung volumes with atelectasis and prominent hila .