Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged . The aorta is mildly tortuous . Mediastinal and hilar contours are unremarkable . Pulmonary vascularity is not engorged . Lung volumes are slightly reduced . No focal consolidation , pleural effusion or pneumothorax is present . Degenerative changes are noted in the thoracic spine . No acute osseous abnormalities are detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .