Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe dextroscoliosis of the thoracic spine is noted . The heart size is mildly enlarged , and the mediastinal and hilar contours are unchanged . There is no pulmonary vascular congestion . Mild bibasilar atelectasis is noted . No pleural effusion , focal consolidation or pneumothorax is identified . No acute osseous abnormalities are seen . Sclerotic focus in the right proximal humerus could reflect an enchondroma and appears unchanged
    OUTPUT:
    
Mild bibasilar atelectasis .