Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette remains mildly enlarged with tortuosity of the thoracic aorta . Hilar contours are unremarkable . Lungs are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No radiographic evidence of pulmonary embolus although a high probability of PE was suggested on a V / Q scan from ___ . The results were discussed over the telephone with Dr . ___ by Dr . ___ at 16 : 55 on ___ at time of initial review .