Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The mid to upper mediastinum is enlarge and lobulated suggesting an aortic aneurysm although not entirely specific . The heart size is normal . The lungs are well expanded and clear , without focal consolidation or pneumothorax . Equivocal trace bilateral pleural effusions are noted . There is no evidence of pulmonary edema .
    OUTPUT:
    
No pneumonia or pulmonary edema . Enlarged mediastinal contours suggesting an aortic aneurysm . Correlation with prior radiographs is recommended ; particularly if none are available to show long - term stability of the appearance , then chest CT is recommended to evaluate further to confirm the etiology , exclude malignancy , and characterize a probable aneurysm . An email was sent to the ED QA nursing group on ___ .