I must say it is rare to see a Gleason 6 and a Gleason 10 in the same arena of PCa diagnosis, I cannot remember seeing another patient with this much difference but this is PCa and exceptions exist.
Suggestions to you: get the actual pathology report in your hands bring the information onto this forum and others (also learn what is says)- always verify PCa things that could have you make life altering decisions on is wise. Next probably ask to have your pathology sent to one of the handful of pathologists that are considered 'The Experts" and see if that Gleason 10 is correct or even the 6, it is well worth it and do not be swayed by the docs you maybe seeing that it is not worth it or such (bull). Google search: PCa pathology and find: Bostwick, Oppenheimer, Epstein, Grignon, Lucia (insurance will cover it or pay the fee) you might also ask for the additional 'plodity testing' especially since you have a possible gleason 10. Have seen many times that reviewed pathology is not what the original findings were, usually not done by the top experts first time in many cases and need review, even so 2nd opinion on major parameters is not dumb.
Dx-2002 (Age 51)Urinary blockage-emergency room, bPsa-46.6 12/12 biopsies all 80-90% cancerous (loaded), Gleasons 7,8,9 both sides similar, ct and bone scans (showed clear, does not guarantee anything) histology type of cancer Acinar (ADT3+rad+ADT3-off-on/DES-off-on again Nov. 2008) psa currently .36