Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right Port - A - Cath is seen , terminating in the low SVC / cavoatrial junction . There is mild elevation of the right hemidiaphragm . The cardiac silhouette is not enlarged . Mediastinal contours are unremarkable . There are perihilar opacities which may be due to pulmonary edema , infection not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax .
    OUTPUT:
    
Right Port - A - Cath terminates in the low SVC / cavoatrial junction . Elevated right hemidiaphragm . Perihilar opacities could be due to pulmonary edema and / or infection .