Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes contribute to bibasilar atelectasis ; however , there are no focal consolidations worrisome for pneumonia . Cardiac size is also exaggerated by the low lung volumes . The mediastinum is normal given a tortuous aorta . The hilar contours are normal . No pleural effusion , pneumothorax or pulmonary edema is identified .
    OUTPUT:
    
No evidence of acute cardiopulmonary process given low lung volumes .