Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right hemidiaphragm is not sharp , which may represent atelectasis and layering effusion . Again noted are 2 right side central venous catheters with unchanged positions of the tips , in the upper to mid SVC and upper right atrium .
    OUTPUT:
    
1 . Overall stable position of the right - sided central venous catheters . 2 . Indistinct right hemidiaphragm , which may be related to atelectasis and layering pleural effusion .