Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is intubated , the tip of the endotracheal tube lies no less than 1 cm from the level of the carina . An NG tube tip and side hole are seen within the stomach . There are low lung volumes , the lungs are otherwise clear without effusion or pneumothorax . The cardiac silhouette and mediastinal contours are normal . There is unchanged S - shaped scoliosis of the thoracolumbar spine .
    OUTPUT:
    
1 . No acute chest abnormality . 2 . S - shaped thoracolumbar scoliosis .