jack14 Posted March 11, 2021 Share Posted March 11, 2021 As some of you may remember, I have been on immunotherapy (Keytruda), since last May for stage 4 NSCLC (T1aN3M1b). The staging was based on contralateral lymphadenopathy. No mets anywhere outside my chest. Anyway, my Oncologist has been using the CA19-9 marker to help keep an eye on the progress of my therapy between scans, as this marker, usually reserved for pancreatic cancer, also works with some lung cancers, like mine. The CA19-9 marker has ranged up and down between 76 initially, to a low a few weeks ago of 49 wih last months going back up to 60. For some reason, she has switched the marker to the "Carcinoembryonic Antigen" marker which is currently 5.9 ng/mL. I intend to ask her why and what this means for me but I wanted to ask you guys if you have any ideas? Thanks Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.