LadyJaneK - Welcome to the G9/10 Crew, the least favorite chapter of the club no one wants to join! Your husband is fortunate to have you here, researching and supporting him. This disease can be quite upsetting for guys, since it attacks the very core of our "manliness", if you will. The first few days are the scariest, especially if you've been searching online with the numbers in his diagnosis. Keep in mind a lot has been developed and learned in just the last few years. A lot of what you find online may be rather outdated, so don't push the panic button prematurely!
Here's a link to the 4th thread of a continuing series. In its first post there are links to the prior 3 similar threads, and you may find it useful to look through the posts for those in similar situations. Did the biopsy results say whether the G9 is "4+5", or "5+4"? It isn't much of a difference, but if the 5 is first that's "primary type 5", which some studies also caution merits the most aggressive treatments. The Gleason 9 and 10 Crew - Welcome and how ya doin'? (Part 4, continued thread)
Next up should be a staging evaluation, probably by a multiparametric MRI. With a PSA that high, and a G9 case, odds are good that this has already escaped the prostate. If so, the staging study should help you know if there is local advancement, or maybe even metastases (let's hope not). If metastatic, there is debate about
treating the prostate directly, or going solely with systemic hormone therapy / chemo. If it has spread, as Stage 3 or 4, then surgery isn't likely to be curative. I ended up with radiation and hormone therapy, but your doctors will look at his overall situation to decide the best combination treatment.
All the best, and please stay with us. No doctors here, but we all have varying degrees of experience to share.