Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are decreased from the most recent prior study . There is mild bibasilar atelectasis . No significant pleural effusion or pneumothorax is detected . There is no focal consolidation concerning for pneumonia . The pulmonary vasculature is not engorged . Minimal biapical scarring on the left greater than the right is unchanged . The cardiac silhouette is incompletely evaluated but likely remains top normal in size and unchanged from the prior study . Tortuosity of the thoracic aorta is also unchanged with calcification at the aortic knob . There is significant S - shaped thoracolumbar scoliosis with subsequent asymmetry of the rib cage as noted on the prior study . There is no evidence of free air beneath the right hemidiaphragm .
    OUTPUT:
    
1 . No evidence of free air beneath the right hemidiaphragm . 2 . Decreased lung volumes with bibasilar atelectasis .