Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes which again accentuate the bronchovascular markings . Mild bibasilar atelectasis without definite focal consolidation . The cardiac and mediastinal silhouettes are stable given differences in lung volumes . Hilar contours are also stable . No pleural effusion or pneumothorax .
    OUTPUT:
    
No significant interval change given differences in lung volumes . Low lung volumes without definite focal consolidation . Persistent top - normal to mild enlargement of the cardiac silhouette .