Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild to moderately enlarged . The aorta is tortuous . The cardiac , mediastinal and hilar contours are probably unchanged allowing for differences in technique , including a convex contour to the right upper mediastinum , which is commonly due to tortuosity of great vessels . There is no focal opacification . The interstitium is again mildly coarse , but similar to baseline . Fissures are mildly thickened as best depicted on the lateral view and there are also trace posterior pleural effusions .
    OUTPUT:
    
Findings suggesting mild fluid overload .