Hello BMAC09d644
With your diagnosis and details I would just check that they intend to give radiotherapy to both the prostate and the affected pelvic lymph nodes (or the complete pelvis). They usually ask for an up to date PSA test too to check the Hormone Therapy is working.
As we all wish to ask different things - here's a list to help you:
I hope this helps. We do have another thread you might like to read here:
What you wish you had known before starting Radiotherapy?
Happy to answer any questions.
Best wishes - Brian.

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