Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . Mild vascular congestion and subtle interstitial abnormality are most readily explained by mild pulmonary edema . Note is made of a nodular opacity projecting over the posterior right 6th rib , measuring 5 - mm . Right - sided IJ terminates in the low SVC . There is no large pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . Right - sided IJ terminates in low SVC . No pneumothorax or other complication . 2 . Mild pulmonary edema . 3 . 5 - mm nodular opacity projecting over the right posterior 6th rib may be secondary to a pulmonary calcification or a bone - island within the rib ; further attention on subsequent radiographs is recommended . ___ were d / w Dr . ___ by Dr . ___ by phone at 8 : ___a on the day of the exam .