FSCN1 and breast cancer: Regarding FSCN1, our findings revealed that women with CC genotype frequency of rs852479 C > A are significantly associated with a high risk of developing BC when compared with AC genotype (CC vs. AC, OR = 0.395, 95% CI 0.204–0.76, p-value = 0.005; OR = 1.053, 95% CI 0.67–1.64, p-value = 0.82; respectively).