Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes and mild bibasilar atelectasis . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Subtle linear lucency along the inferior aspect of the distal right clavicle is stable since the prior study .
    OUTPUT:
    
No acute cardiopulmonary process .