Hi there,
My husband was G9 and diagnosed 2014. He had surgery as everything suggested it was all contained. Sadly, when they did the surgery , they found it was not in fact contained. It has spread to bladder neck, seminal vesicles and one local lymph node. Very strange how it wasn't picked up on pre op scans.
However, despite the G9 and the spread, he's still here and doing fine sept 2023. He is now having slow rise in PSA. Next PSA coming up and probably will need a scan and more treatment I suspect.. he's been off any treatment since 2019.
So G9 , although it needs to be treated more aggressively and carefully l, can still be v manageable.
Hope this helps,all the best to your husband.