Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited by motion artifact and low lung volumes . Allowing for these limitation , there are no focal parenchymal opacities . Cardiomediastinal and hilar contours are unremarkable with the exception of a tortuous aorta . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes ; otherwise , unremarkable chest radiographic examination .