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Retrospective Cohort Study
©The Author(s) 2025.
World J Gastrointest Pathophysiol. Sep 22, 2025; 16(3): 107954
Published online Sep 22, 2025. doi: 10.4291/wjgp.v16.i3.107954
Table 2 Gene mutations according to colorectal cancer tumor specimens sources (n = 799), n (%)
Specimen source
Total
Wildtype
KRAS mutation
NRAS mutation
BRAF mutation
Primary tumor tissue722 (90.3)376 (92.1)270 (85.4)32 (94.1)44 (91.6)
Metastatic tumor tissue77 (9.7)32 (7.9)46 (14.6)2 (5.9)4 (8.4)


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