Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , with atelectasis of the lower lungs . There is elevation of left hemidiaphragm . Mild cardiomegaly is unchanged and the hilar and cardiomediastinal contours are otherwise normal . There is no pneumothorax . There is no pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis . No definitive airspace consolidation .