From: Prognostic impact of KRAS, NRAS, BRAF, and PIK3CA mutations in primary colorectal carcinomas: a population-based study
Mutated genes
KRAS
KRASÂ +Â PIK3CA
NRAS
NRASÂ +Â PIK3CA
BRAF
BRAFÂ +Â PIK3CA
PIK3CA
Wild-type
Cases
227
36
21
8
16
6
64
418
%
28.5
4.5
2.7
1.0
2.0
0.8
8.0
52.5