Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest ___ at 23 :59 are submitted .
    OUTPUT:
    
Bibasilar linear opacities favor subsegmental atelectasis or scar . Lungs are otherwise clear without evidence of pulmonary edema pleural effusions or pneumothorax . Cardiac and mediastinal contours are within normal limits . No acute bony abnormality .