Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe dextroscoliosis of the thoracic spine is noted . The heart size is normal . Mediastinal and hilar contours are unremarkable , and there is no pulmonary vascular congestion . Linear and streaky opacities in the lung bases most likely reflect atelectasis . There is no focal consolidation , pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Mild bibasilar atelectasis .