Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Again seen is elevation of left hemidiaphragm . Lower lung volumes seen on the current exam . There is streaky left basilar opacity likely due to atelectasis . Less conspicuous right basilar opacity is also seen , likely atelectasis . Superiorly , the lungs are clear of consolidation . The cardiomediastinal silhouette is unchanged . No acute osseous abnormality is identified . Chronic changes at the distal left clavicle again noted as well as anterior cervical fixation hardware .
    OUTPUT:
    
No definite acute cardiopulmonary process . Lower lung volumes on the current exam with probable bibasilar atelectasis .