Lots of useful information I have encounter in the forum.
I know that my mum carries NRAS mutant since Aug as she became a stage4 patient after the surgery and a few rounds of xeloda.
Then I have come to notice that Q61R does mean something other than EGFR antibodies are not sensitive for her so she has only Avastin left.
So far her response is ok, but I would like to know is this Q61R thing similar to the KRAS G12V that makes prognosis more difficult than the others?
Guess this is not a common form of mutation. Thanks for any sharing and information in advance.