Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest are obtained . A dialysis catheter is seen projecting over the right chest wall with catheter tip in the expected location of the superior vena cava . Cardiomegaly is mild . No signs of CHF . Tiny left pleural effusion is likely present . No pneumothorax . Mediastinal contour is unremarkable . Bony structures appear intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild cardiomegaly . Dialysis catheter in appropriate position . Tiny left effusion .