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one year post radiation advice

Prostate Cancer | Last Active: 2 days ago | Replies (15)

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@brianjarvis yes, the SUV max is 3.4 and the outline of the tumor remains.
I only have the addended report from mychart, so I don't know blood, liver or parotid numbers
Radiation was the 5 fraction 20 GY total of 40. Do you think they can re-radiate to a higher total GY of the usual 80GY.
Maybe a person has to wait to see if it really is cancer.
I appreciate your response and will return when I have the other SUV numbers.

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Replies to "@brianjarvis yes, the SUV max is 3.4 and the outline of the tumor remains. I only..."

@gently This is a situation where if it were me, I’d have a very detailed discussion with my RO as to what’s going on.
> what was your PSA and Gleason going into SBRT?
> did you use hormone therapy?
> did you use a rectal spacer?
> do you have the full PSMA PET scan report from prior to the SBRT (to see the SUVmax scores for your blood, liver, and parotid glands at that time)?

(That probably should be “5 fraction 8 GY total of 40” right?)

They won’t likely re-radiate unless they don’t believe that 40 Grays was enough biologic effective dose. (It should’ve been; depends on what your initial diagnosis was.)

Dr. Rossi talked about re-radiation at the 2023 PCRI Mid-Year Conference at: https://www.youtube.com/live/WTqPnSRYtW4
—> Starting at about timestamp 4:53:00

Dr. Rossi is talking about proton radiation, but the same concepts probably apply to SBRT and IMRT as well. As he mentions, there are other options that are preferable to re-radiation.

As for waiting “to see if it really is cancer…,” your numbers (e.g., PSA, Gleason, SUVmax) are what would indicate that.

What is your doctor’s opinion on what’s going on, how this could’ve happened(!), and plans going forward?