Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes exaggerate the cardiomediastinal silhouette however no hilar or mediastinal abnormalities are identified . Note is made of mild bibasilar atelectasis . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Mild bibasilar atelectasis . No acute intrathoracic abnormalities identified .