Kathy, it is good to hear from you guys, although it is a bad news that this stubborn met at the L4 is not getting killed by the radiosurgery. There are a few questions to ask:
1. Can it be the fluid or edema from the repeated radiosurgery that looks the same as the growth - Brittany had this situation at some point;
2. Can the open surgery be done to remove it whatever it is or if not possible, be treated by the cryo (or experience is very good there and more info can be found in the cryoablation topic of the treatment modalities forum here:
viewforum.php?f=43);
3. Is this met located close to where the primary was (possible incomplete primary resection) or in the chest spine area, I do not remember where L4 is. Is it in the L4 bone or the attached soft tissue or they do not know?

