Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As on recent CT there is severe scoliosis which somewhat limits evaluation of the mediastinal structures . The lungs are well expanded and clear . There are no focal opacities to suggest pneumonia . The cardiomediastinal silhouette , and hilar contours are stable . There is no pleural effusion or pneumothorax . There is coronary artery calcification and stenting . The thoracic aorta is tortuous and calcified .
    OUTPUT:
    
No evidence of acute intrathoracic process .