Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is a mild prominence of the hila with upper vascular re-distribution suggesting volume overload . There are no focal opacities to suggest pneumonia . There might be a small right - sided pleural effusion . The left costophrenic angle is not blunted . There is no pneumothorax . Severe cardiomegaly is unchanged from prior . Sternotomy wires are intact . There has been interval removal of a previously seen right - sided central line .
    OUTPUT:
    
Cardiomegaly and mild edema .