Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . The aorta is tortuous and calcified . There is no pleural effusion or pneumothorax . There are surgical clips in the abdomen .
    OUTPUT:
    
No acute intrathoracic abnormality identified .