Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is minimally increased in size compared to ___ with redemonstration of a mildly tortuous thoracic aorta . The hilar contours are unremarkable and there is no evidence of interstitial edema . Lungs are otherwise clear . The pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormality .