Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes contribute to bibasilar atelectasis . Cardiac size is normal . No focal opacities concerning for infectious process . There may be a small amount of fluid within the fissure on the right with an adjacent area of segmental atelectasis . No pneumothorax . Aorta is tortuous . Gaseous distention of the stomach results in left diaphragmatic elevation . No free air under the diaphragms .
    OUTPUT:
    
Bibasilar atelectasis . Gaseous distention of the stomach .