Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular approach large bore central venous catheter tip terminates in the high right atrium . Heart size is top normal . Postoperative mediastinal contours unchanged with median sternotomy wires intact . Central pulmonary vasculature is mildly prominent but without frank interstitial edema . Lungs are otherwise clear . Mediastinal and hilar contours are otherwise unremarkable . There is no effusion pneumothorax .
    OUTPUT:
    
Mild vascular congestion without frank interstitial edema . No pneumonia .