Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter projects over mid SVC . There is no pneumothorax . Lung volumes remain low . There is blunting of the left costophrenic angle suggestive of pleural effusion . Trace right pleural effusion is likely . Perihilar vascular congestion is noted . Bibasilar opacities may represent atelectasis . The hilar and mediastinal silhouettes are unchanged . The heart is mildly enlarged . Partially imaged upper abdomen is unremarkable . Patient is status post medial sternotomy . Curvilinear densities projecting over the patient 's mid abdomen are likely external to the patient .
    OUTPUT:
    
Right internal jugular central venous catheter projects over mid SVC . No pneumothorax .