NavDX positive test

UPDATE: on mets from my Head and Neck HPV SCC P16. After 7 months of the NavDX blood test going up and not showing up on a PET scan. It showed up with a 1.1cm tumor on my left lung. They removed the Tumor on Oct 14th in Virginia Mason hospital in Seattle. I got another NavDX blood test back this week still showing a positive level of 18. This is from a high before surgery of 210. My Tumor pathology report came back with PERTINENT POSITIVE FINDINGS: PD-L1 expression for Keytruda (CPS=60)….. I start my Keytruda next week and every 6 weeks for two years.I will be doing the NavDX every 3 months along with a PET scan. I wish you all a happy Thanksgiving and a wonderful holiday season……..Bill…….P.S. my Ct guided biopsy of the tumor originally showed negative for PD-L1. It just shows you how much more info you get from the tumor…..