Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . There are slightly low lung volumes . Mild bibasilar atelectasis is seen . No definite focal consolidation is seen . There is no large pleural effusion or pneumothorax . Multiple old right - sided rib fractures are again seen . The cardiac and mediastinal silhouettes are stable . Evidence of a hiatal hernia is again seen with air - fluid level seen on the lateral view . Hardware is partially imaged . Compression deformities at the thoracolumbar junction are stable .
    OUTPUT:
    
1 . Mild bibasilar atelectasis . 2 . Multiple old right - sided rib fractures . No definite acute rib fracture seen , but if clinical concern persists , suggest dedicated rib series . 3 . Hiatal hernia .