Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are well expanded and clear without focal consolidation , pleural effusion or pneumothorax . Heart size is normal . Bulging of the right mediastinal contour in the region of the ascending aorta could be due to aneurysm or mass . Hilar contours are normal . There is no free air under the diaphragm .
    OUTPUT:
    
1 . No pneumonia . 2 . Right mediastinal contour abnormality . If there is no prior imaging already explaining this , recommend further evaluation with chest CT . Findings and recommendations discussed with Dr . ___ ( ED ) at 8 am ___ .