Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual lumen central venous catheter tips terminate in the lower SVC and proximal right atrium . Left - sided pacemaker device is noted with leads terminating in the right atrium and right ventricle , unchanged . Lung volumes are low . Heart size is moderately enlarged . Mediastinal contours are unremarkable . There is mild pulmonary edema . No pleural effusion , focal consolidation or pneumothorax is identified . No acute osseous abnormality is detected .
    OUTPUT:
    
Mild pulmonary edema . Left - sided hemodialysis catheter tips are in standard positions within the lower SVC and proximal right atrium .