My husband had DaVinci surgery in July 2009, it was wonderful but, on his 5th year checkup his psa number started climbing a little, so finally they gave him a hormone shot, in November 2018, his number was negligible in March 2019, We are sticking with that so far, but I would like him to do the c-11 chloline test to see if the cancer is there and has it spread. There is another test for detecting reoccurring cancer, even small amounts, called Axumin done in our area(Buffalo, NY) and in Cleveland Clinic, Ohio. Right now we are waiting for his next psa test.