Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains top normal in size with a left ventricular predominance . The aorta is tortuous . Mediastinal and hilar contours are otherwise unchanged . Lungs are clear without pulmonary vascular congestion . No pleural effusion or pneumothorax is present . Moderate degenerative changes are re- demonstrated within the imaged thoracic spine with mild loss of height of a low thoracic vertebral body .
    OUTPUT:
    
No acute cardiopulmonary abnormality .