Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right internal jugular central venous catheter , terminating in the low SVC / cavoatrial junction . Endotracheal tube is seen terminating approximately 3 .9 cm above level the carina . Lung volumes remain low and there is minimal left basilar atelectasis . No evidence of pneumothorax is seen . No large pleural effusion is seen . Again , large lucency beneath the right hemidiaphragm is highly worrisome for pneumoperitoneum .
    OUTPUT:
    
Interval placement of right IJ central venous catheter terminating in the low SVC / cavoatrial junction without evidence of pneumothorax . Pneumoperitoneum partially imaged .