Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single chest AP radiograph demonstrates unremarkable mediastinal , hilar , and cardiac contours . Minimal bibasilar atelectasis is noted ; otherwise , lungs are clear . No pleural effusion or pneumothorax evident . There is stable dextroscoliosis of the thoracic spine . Previously noted vertebral compression fractures are not identified on current study . Left glenohumeral degenerative changes are unchanged .
    OUTPUT:
    
No acute intrathoracic process .