Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The central catheter with its tip in the right atrium is unchanged in position from ___ . Median sternotomy wires are again demonstrated and are unchanged . Vascular clips consistent with prior cardiac surgery are stable . Mild cardiomegaly is stable the cardiomediastinal and hilar contours are within normal limits . There is no focal consolidation , pleural effusion or pneumothorax . Mild pulmonary vascular congestion is present but interstitial edema has improved from most recent prior radiograph on ___ .
    OUTPUT:
    
Pulmonary vascular congestion . No evidence of pneumonia .