Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . Lung volumes are slightly decreased , with bilateral lower lobe atelectasis . There is no focal consolidation to suggest bacterial pneumonia . There is a small right pleural effusion . There is no pneumothorax . The visualized upper abdomen is remarkable only for radiodense contrast material throughout the colon , likely related to leak check from ___ . A small amount of subcutaneous air is also likely related to the recent procedure .
    OUTPUT:
    
1 . No focal consolidation or pneumothorax . 2 . Small right pleural effusion and slightly low lung volumes with bibasilar atelectasis .