Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is again seen . Relatively low lung volumes are noted . Linear bibasilar opacities right greater than left likely due to atelectasis . There is no effusion . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .