Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . The aorta remains mildly tortuous . The mediastinal and hilar contours are otherwise similar . Pulmonary vasculature is normal . Scarring within the lung apices is unchanged . Lungs are otherwise clear without focal consolidation . No pleural effusion or pneumothorax is present . The osseous structures are diffusely demineralized with mild multilevel degenerative changes noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .