Well, the expert documentation says that if you catch it early and there’s very little spread, you might be able to do surgery. Otherwise your treatment plan is to stop the cancer from growing. Maybe they can use SBRT radiation, The following paragraph discusses that.

“While radiation therapy can be used to treat prostate cancer that has spread to the liver, it is not usually a curative treatment for liver metastases. Radiation can help control the growth of tumors, relieve symptoms, and potentially improve survival when used in combination with other treatments. However, liver metastases are often considered a late stage of the disease, and cure is usually not possible with radiation alone”

That means getting on ADT (or the Estradiol patch) And an ARSI like Zytiga or one of the lutamides.

That’s the only way to control growth and can work for years, It sure worked for me for eight years, though our cases are different.

You need to talk to your doctor about this. Find out how much spread there is what the doctor thinks they can do and what drugs the doctor thinks you should be on. At least you have some information about choices.