Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . There is persistent mild elevation of the left hemidiaphragm , likely exaggerated by mild dextroscoliosis throughout the thoracic spine , which is stable . The hilar and mediastinal contours are within normal limits . The aorta is moderately tortuous . There is no pneumothorax , focal consolidation , or pleural effusion . Mild bibasilar atelectasis is unchanged .
    OUTPUT:
    
No acute intrathoracic process .