Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Dialysis catheter is in unchanged position with its tip in the lower SVC . Cardiomegaly again noted with pulmonary vascular congestion and mild interstitial edema . No large effusion or pneumothorax . No convincing evidence for pneumonia . Mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Stable cardiomegaly , hilar congestion and mild interstitial edema . Dialysis catheter in unchanged position .