Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is slightly limited due to patient rotation . The heart size is normal . The aorta is unfolded . The pulmonary vascularity is not engorged . Lungs appear clear . No pleural effusion or pneumothorax is definitively noted . There are mild degenerative changes of the thoracic spine .
    OUTPUT:
    
No radiographic evidence for congestive heart failure or pneumonia .