BM	Brain Metastases
CI	Confidence Interval
CT-scan	Computed Tomography scan
CRC	Colorectal Cancer
ECM	Extracranial Metastasis(es)
ECOG	Eastern Cooperative Oncology Group score
FISH	Fluorescence In Situ Hybridization
HR	Hazard Ratio
IHC	Immunohistochemistry
OS	Overall Survival
mCRC	Metastatic Colorectal Cancer
MMR	Mismatch Repair
MRI	Magnetic Resonance Imaging
pMMR	Proficient Mismatch Repair
dMMR	Deficient Mismatch Repair
PPT	Paired Primary Tumor
TMA	Tissue Microarray
TILs	Tumor-Infiltrating Lymphocytes