Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Mild bibasilar atelectasis is noted . No pleural effusion or pneumothorax noted . The cardiomediastinal and hilar contours are unchanged from the prior examination . Mild low lung volumes are noted with crowding of bronchovascular markings . No rib fractures are visualized .
    OUTPUT:
    
1 . Low lung volumes with crowding of bronchovascular markings and bibasilar opacification increased on the right , most likely representing atelectasis ; however , infectious process such as pneumonia can not be completely excluded in the correct clinical setting . 2 . No rib fractures . If rib fractures are clinically suspected then a dedicated rib series can be obtained .