The doctor sends your biopsy core, I believe it is just the most serious one to one of the several Genomic Lab companies. Mine was Decipher. Not sure how it works for lymph nodes...maybe they can send positive tissue found there. Many doctors are using the genomic results to help devise the treatment course. For example, the radiologist I consulted said that even though
i had gleason 8, a shorter course of ADT might be in order due to my low genomic score. Might be worth asking your surgeon about it. My insurance did cover it. Wishing you all the best.