Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is top - normal in size but stable from the prior chest radiograph in ___ . As before , the thoracic aorta is markedly tortuous however it is stable in appearance from the radiographs in ___ and best delineated on prior CT from ___ . The lungs are clear without focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
No acute intra thoracic process . Tortuous thoracic aorta is stable in appearance from ___ and better seen on CT from ___ .