Update re: SRS treatment for spinal tumours

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As promised I said that I would let you know what questions we asked and their answers - as best I can.

First, we spoke to my son's oncology consultant as he has carried out the two SRS treatments for brain tumours in the past, and it was him who had put forward the possibility fo SRS to treat the large tumour embedded in the middle of my son's spinal chord.

We had huge concerns about going forward with this the biggest cause for concern being the amount of swelling that would occur as this is a big tumour - I am not sure of the size but we do know that it is sizable - and the damage the spinal chord could suffer due to the swelling but also the intensity of the radiation as the tumour and the spinal chord are almost one it is so embedded.

We were right to be concerned, as we were told that, upon discussion with colleagues, it had been decided that due to the size and how embedded it is in the chord SRS was far too risky.

Simply put, SRS would be to severe, and would most certainly cause damage to the surrounding spinal chord, the size of the tumour to great meaning that the swelling caused by SRS would bring it's own set of problems.

An alternative has been put to us - radiotherapy. This will entail daily treatment Mon-Fri for 6 weeks. The reason this has been put forward is that unlike SRS radiotherapy delivers a much smaller amount of radiation, allowing the surrounding tissue, spinal chord in this instance, to recover before the next treatment. We have been told that this will not shrink the tumour, at best it will stop the tumour from growing any further - we hope.

There will still be some swelling with this, so my son will be put on a course of steriods to try and control this.

Second we spoke to my son's neurosurgeon about the suggestion of radiotherapy. He agreed with the decision, as although surgery is a remote possibility, it will destroy the chord at that point, therefore not really viable until there are no options left available to us. He felt radiotherapy is my son's best chance at retaining the mobility he still has, and agreed that SRS would not have been a wise choice.

Third - I wrote to NIH/NINDS and also to Dr. Lunsford, both parties were more that happy to review my son's scans, but we feel confident that the direction our consultants here are taking is the best. I still have the option of sending the scans, and would do so if I wasn't confident in the outcome of out discussions.

So tomorrow we have a planning appointment, another opportunity to ask questions about radiotherapy and to air any further concerns. We will also get the start date for treatment. I will post again as time passes to let you know how treatment is going.

Please keep my son in your prayers.

Thank you

5 replies

When you say radiotherapy is that proton beam radiation? We had a doc at Sloan-Kettering mention that possibility. Or will your son be receiving traditional radiation?

Dear Myway,

I do hope the proposed treatment for your son will prove effective.

We will remember him in our prayers.

The information in your posting is very important to others.

Best wishes to you and the family.

Mary.

Good morning.

I've been researching different types of radiotherapy. One that has most caught my interest is that of proton beam radiotherapy. It delivers high dose radiation to very localized sites. The radiation doesn't scatter as much to the healthy areas around the tumor with the proton beam as it does with other types of SRS. That's what primarily makes it far more preferred.

As I understand it, there are few sites available with proton beam radiotherapy. The last I read there were only about 6 sites in the US and about 24 in the world. That's primarily because of the amount of space required (size of football field) and the cost involved ($100-$200 million). As a result, only 2,000 of 60,000 appropriate cancer patients were apparently treated with the proton beam radiotherapy in 2006. However, there are predictions that proton therapy will increase in use by 1500% by 2016. Many experts say it is definitely the most superior form of cancer treatment.

A good friend of mine recently invested with CPAC (Compact Particle Acceleration Corporation) in order to create the next generation of compact proton therapy for cancer treatment. They hope to build a machine that can be 'used in a standard therapy treatment room.' 12 such units are projected to open beginning in 2009-2010.

My reading will continue on the use of proton therapy for vhl related tumors. If anyone has further information, please post it or send me a message. I'd greatly appreciate it.

Thanks.

TJ

I am not sure about proton beam therapy, it isn't something we have discussed, as far as I am aware this is traditional radiotherapy that my son will be receiving.

Thank you for your prayers Mary, and all good wishes, they are much appreciated.

Hi All,

I just had surgery in July for a spinal cord hemangioblastoma and asked all of these questions. I was told that SRS, radiation, proton beam, and Gamma knife were not viable options due to the risk of further swelling in an already confined area, as well as the fact that the risk for collateral damage was too great. The only remaining option was Sutent, but that only treats the edema if there is any present, not the hemangioblastoma itself and therefore only delays the inevitable (at least in my case) which was surgery. The doctors prefer to avoid using Sutent and saving it for later needs which as a VHL patient makes sense to me. I know this likely will not be my only "round" with VHL.

Hope that helps.

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