Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly . The aorta is tortuous . . Aside from an unchanged interstitial abnormality in the periphery of the right lower lobe , better seen in prior CT , the lungs are clear . There is no pneumothorax or pleural effusion . There are moderate degenerative changes in the thoracic spine
    OUTPUT:
    
No acute cardiopulmonary abnormalities