Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest provided . There is asymmetric pulmonary vascular congestion , right worse than the left . Superimposed pneumonia can not be excluded . Heart size is stably enlarged . Sternotomy wires are in unchanged positions .
    OUTPUT:
    
Asymmetric pulmonary edema . In appropriate clinical setting , superimposed pneumonia could be considered .