Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter is seen terminating in the low SVC / cavoatrial junction without evidence of pneumothorax . Dual lead left - sided pacer device is similar in position . There has been interval development of obscuration of the left hemidiaphragm , given short term interval , may be due to atelectasis or aspiration . The cardiac silhouette remains enlarged . Mediastinal contours are unremarkable . There is central pulmonary vascular engorgement .
    OUTPUT:
    
Interval placement of right IJ central venous catheter terminating in the low SVC / cavoatrial junction without evidence of pneumothorax . Increased obscuration of the left hemidiaphragm / left base opacity , given short term interval , may be due to atelectasis or aspiration . Central pulmonary vascular engorgement .