Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right internal jugular central venous catheter tip terminates at the junction of the SVC and right atrium . Moderate cardiomegaly persists . The mediastinal contours unchanged . Perihilar opacities with vascular indistinctness is compatible with mild pulmonary edema . No large pleural effusion or pneumothorax is present . Patchy retrocardiac opacity may reflect atelectasis .
    OUTPUT:
    
Right internal jugular central venous catheter tip at the junction of the SVC and right atrium . No pneumothorax . Mild pulmonary edema . Probable retrocardiac atelectasis .