Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is severe right convex scoliosis of the visualized spine , centered in the lower cervical spine . Ill - defined bibasilar opacities may represent atelectasis or aspiration . There is no pleural effusion . No pneumothorax . Mediastinal and hilar contours are stable with unchanged severe tortuosity of the thoracic aorta . Mild cardiomegaly is unchanged .
    OUTPUT:
    
Bibasilar opacities may represent atelectasis or aspiration .