Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is kyphotic which slightly limits assessment . Heart size appears mild to moderately enlarged . Mediastinal and hilar contours are grossly unremarkable . Low lung volumes results in crowding of bronchovascular structures without pulmonary edema . Minimal patchy opacities in the lung bases likely reflect areas atelectasis without focal consolidation . No pleural effusion or pneumothorax is seen . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .