Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . Bibasilar patchy and linear opacities are present . Mild leftward deviation of the trachea likely reflects enlarged right thyroid lobe . There is small right pleural effusion . There is no left pleural or pneumothorax . The cardiomediastinal silhouette is unremarkable . The bones are very demineralized .
    OUTPUT:
    
Small right pleural effusion . Bibasilar opacities favor atelectasis , but coexisting aspiration or infectious pneumonia are not excluded .