For some reason I asked our onc for a short written report on my mom's overall situation. He mentioned in the report that KRAS mutation was "indeterminate". This surprised me as I was told long ago that my mom was not a candidate for Cetuximab, and I assumed automatically my mom has mutation.
The KRAS mutation testing was done mid-2016 just before chemo started, with firstly sample taken from pleural fluid that contained adenocarcinoma cells. Our onc said the result showed only "a few" cancerous cells and the amount could not yield conclusive result, so he needed to do another test with sample taken from my mom's rectal tissues removed five years ago. Later we heard from him that Cetuximab was not an option for my mom but like I said he did not mention whether KRAS mutation was "indeterminate", until now.
At the moment I am not sure if he is withholding crucial information. I don't feel so as he has been a very caring onc. I am going to talk to him soon on this but would like to know if anyone here has similar experience. Is the detection of KRAS mutation something that could be "indeterminate"?