This is an instance where proton might be a good choice, since it doesn't radiate a lot past it's target. Standard IMRT might not be suitable because it does travel past the target, and in this case - the target and what you're trying to avoid are in intimate contact.
Worth talking to a few radiation oncologists before making a decision on treatment.
Yes, it is difficult -the rectum, not the bladder. It can cause a fistula, which may not heal. How do you know it hasn't invaded the rectal wall?
You cannot use any kind of spacer, of course. And any kind of removal (any kind of radiation,surgery, or focal ablation) can be dangerous. The only option is a temporary diverting colostomy and surgery. They can re-establish the rectum after it heals.
I think he was agreeing with Tall_Allen regarding temporary diverting colostomy and surgery. It does sound like radiation can be very risky. I know it’s hard to second guess treatments “woulda shoulda coulda” but it’s important to just try to get the best information and options open to you and look forward. I have read about excellent results with LU 177. That may be the way to go. Based on my my understanding, it’s a lethal dose of liquid radiation using the tracer to go directly to the area where needed
I had a mesorectal LN and it was radiated with IMRT after a HDR-BT with SpaceOar placed. After four years, no SE's, so yes, it can be done successfully with the right team.
I had this done at the Mayo Clinic Rochester using IMRT. My colon was irritated some by the radiation but recovered in a couple weeks. I feel great and PSA is now undetectable. They were very careful to precisely target every treatment (20) with a scan before radiation was applied.
Speak to an experienced proton radiation oncologist at a center using pencil beam technology. Dr Rossi at California protons in San Diego is the most experienced in the world, he also does Zoom consults, it might be worth sending all of your records to him including all imaging you had done and see what he says. He just treated a hilar lymph node in my chest sitting on the pulmonary artery beneath the right lung and was able to do that without any issues.
I had a fistula between the prostate wall and rectum wall caused by focal laser ablation in 2017 by Dr. Eric Walser at University if Texas Medical Branch in Galveston Texas. The fistula blew out a few weeks after the surgery and caused my urine to exit my rectum and feces to exit my penis. My local Urologist at St Francis Downtown Greenville SC put a catheter in and recommend a colostomy and then reconstructive surgery. When I expressed concern, he said, “I’d bet my house it will never heal on its own”. My wife took me back to UTMB where they recommended time for healing. It did but was the most painful and agonizing time of my life. In May of 2022 it had spread to my spine. My psa had never been above 11.
If you go ahead with radiation, make sure they are the very best at what they do. It is very risky.
I read all the replies to you and it sure got me thinking fast . You see i have the same problem as you do by the looks of it . A month ago I had PET SCAN done and it shows that there is something new in the bed of the prostate bed . I asked my urologist what he thinks and he said not to worry about it for now since so many years have past after my surgery . Now he is sending me to oncologist on the 22-nd of this month just in case he said . Now a group of oncologists will decide what treatment I should be put on . I am Bulgarian /Canadian and was operated in Toronto 2002 and never had any chemo or any other radiation done so far . Also I have never taken any drugs so far . I am living in Bulgaria now since I am retired . I feel good all around and do a lot of hard work around the house with no problem . The problem is that 2020 i had COVID-19 AND IT ALMOST KILLED ME ! I did recover not too bad from it but my PSA started going up very fast since than and it went from 12 to 109 last month . In two weeks I will turn 69 . I will keep you posted on what happens on the 22-nd and what the doctors will suggest . Keep me posted with what you do from now on please . Thanks and good luck to you . I will pray for you .
Lots of good advice and comments here. Despite the claims for radiation and the vast improvements on delivering dosage and accuracy, it is still a collection of “allowances” for targeting and margins that overlap and ultimately increase the overall “target area”. All therapies are a “judgement call”. I am suffering from post RT proctitis. Not bad but I am hoping it heals in the long term. When in doubt, cut it out comes to mind. I wish you a successful intervention.
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