All those are different types of genomic testing of tumors.
Most patients are tested for the KRAS mutation and, hopefully, more are tested for the BRAF mutation these days. Sometimes, added to that, some people get tested for TP53, APC and a couple of more. These tests I mention here --the one from Foundation One, other called Caris, the one from Memorial Sloan Kettering in NY, Oncoplex from the University of Washington, in Seattle WA-- are wider in their reach, they test for look at hundreds of genes, finding clinically relevant gene changes, that the doctors might be able to target.
Fundation One https://www.foundationmedicine.com/geno ... dation-one
MSKCC Impact https://www.mskcc.org/msk-impact
UW Oncoplex http://web.labmed.washington.edu/tests/ ... W-OncoPlex
And this is part of more of those tests, even if it is not mutation: all CRC patients from stage II to higher NEED TO BE TESTED TO DETERMINE MICROSATELLITE STATUS.
That is, if they are MSS --microsatellite stable-- or MSI -High -- microsatellite in-stable---. That determines course of treatment, at the present.