Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is no focal consolidation n or pneumothorax . No evidence of large pleural effusion . There is mild left basilar atelectasis . Heart size is normal . The aorta is tortuous . A hiatal hernia is noted . Hilar contours are normal . Degenerative change is seen in the thoracic spine .
    OUTPUT:
    
No pneumonia or edema .