Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with stable cardiomediastinal contours . Lung volumes are low . No focal consolidation , pleural effusion , or pneumothorax . No pneumomediastinum . The catheter of a right chest wall port terminates in the lower SVC .
    OUTPUT:
    
Low lung volumes . No pneumomediastinum .