Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular central venous catheter is seen with the tip terminating in the upper SVC . No pneumothorax is detected . In comparison to the most recent prior study , there is slightly increased opacification at the left lung base with blunting at the left costophrenic angle likely reflecting a combination of pleural fluid and atelectasis . Streaky opacification at the right lung base medially most likely reflects atelectasis . The cardiac silhouette is enlarged but stable . The mediastinal contours are within normal limits with calcification of the aortic knob and tortuosity of the thoracic aorta . Mild pulmonary vascular congestion is present without overt pulmonary edema . Degenerative changes are noted in the spine . Two orthopedic screws are imaged in the right humeral head .
    OUTPUT:
    
1 . Slightly increased opacification at the left lung base from ___ likely reflects a combination pleural fluid and underlying atelectasis or consolidation . 2 . Mild pulmonary vascular congestion . 3 . Right internal jugular central venous catheter with tip in upper SVC .