I have received a letter from the hospital that has also been sent to my gp I have recently had a biopsy for prostate cancer as my psa levels were 8.1ugl and after an mri scan saying my pi-rads 4 I’m unsure what this means and obviously I have googled but really overwhelmed and still don’t really understand what it means,obviously I’m worried and it was done last Tuesday so they said results in 3 weeks,it’s mainly the pi -rads I don’t understand,thank you