Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes contribute to crowding of the bronchovascular structures as well as bibasal atelectasis but there are no focal consolidations which are concerning for pneumonia . There is no pneumothorax . There is no pulmonary edema . The heart size is normal . The aorta remains slightly tortuous .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .