Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Cardiac silhouette size is moderately enlarged but similar . Mediastinal and hilar contours are unchanged . Low lung volumes result crowding of bronchovascular structures . There is no overt pulmonary edema . No large pleural effusion or pneumothorax is seen . Bibasilar atelectasis is noted . No acute osseous abnormalities detected . Diffuse demineralization of the osseous structures with mild degenerative changes are again noted throughout the thoracic spine . There is mild compression deformity of 2 adjacent vertebral bodies in the mid thoracic spine , unchanged .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis .