I was MSS too, Claudine!
Don't brush it off.
When "they" say immunotherapy doesn't work for MSS, they are talking about infused agents like Keytruda, and Yervoy, etc.
my blog: Cancer RiotNED since April 2016!
April 2016: lower left lung lobectomy. NED
8 mo. f/u: 1 of 7 tumors progressed.
6 mo. f/u PR
confirmed (Jan 2016)
Jul 2015: NIH TIL trial NCT01174121 NCI/NIH Surgery Branch FAQ
Dec 2014 confirmed stage IV w/bilateral lung mets
FOLFOX + Radiation (bladder)
KRAS G12D :: MSS
dx Sep 2013 @47yo: IIIc T4b N2b MX [bladder invasion, 17/21 lymph nodes]
Married 28 yrs. kids: 24
SE Michigan home schooler, unemployed mechanical engineer, and programmer.