Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube and enteric tube have both been removed . Lung volumes remain quite low , however previous mild pulmonary edema is improved . Left pleural effusion may be slightly larger . There is no pneumothorax . Heart and mediastinal contours remain stable . The aortic arch is calcified and features an abnormal contour along the superior margin also seen ___ .
    OUTPUT:
    
1 . Improved volume overload . Possible enlarging small left pleural effusion . 2 . Abnormal contour of the aortic arch stable since ___ should be further evaluated with CT non urgently to exclude aneurysm or mass .