Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The mediastinal and hilar contours appear unchanged . There are prominent and indistinct central pulmonary vessels worrisome for fluid overload , and potentially there is a developing opacity in the medial right lower lung , probably within the right lower lobe .
    OUTPUT:
    
Findings suggesting a mild congestive heart failure or fluid overload and the possibility of a developing focal opacity at the right lung base should also be considered in short - term follow - up depending on clinical presentation .