Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . Low lung volumes again noted on this exam . Bibasilar opacities most suggestive of atelectasis . The lungs are otherwise clear . There is no effusion . Cardiomediastinal silhouette is stable , as are the osseous and soft tissue structures . Surgical clips noted in the upper abdomen .
    OUTPUT:
    
No definite acute cardiopulmonary process noting low lung volumes .