would appreciate any kind of info on the following:
Since I startred te taf / mek combo in February when I had lots of mets and rather high levels of s-100, the marker has constantly gone down. Scans a month ago showed considerable shrinkage of all mets.
I had another appointment at the clinic this week and just got a call that s-100 has now gone up and is slightly above the upper limit. They say not to worry as this could also be caused by the decay of tumor cells Obviously it should be enough that I come again for my next monthly appointment.
Do any of the stage IV folks have experience with S-100 and that it could suddenly go up and then down again without any need to worry?