Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are mildly decreased with bibasilar atelectasis , more prominent on the left , overall similar from the prior examination . There is no lobar consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is unchanged in appearance . No displaced rib fracture is identified . Known mixed sclerotic and lytic lesions within the right coronoid process , right scapula , left anterior second rib , manubrium , and sternum are better visualized on the patient 's previous CT chest examination .
    OUTPUT:
    
Bibasilar linear atelectasis , left greater than right , without evidence of acute cardiopulmonary process .