High Kv10.1 protein levels have been found in human BCs (Hemmerlein et al., 2006; García-Becerra et al., 2010) and it was shown that Kv10.1 expression is higher in invasive-ductal carcinomas than in fibroadenomas (García-Becerra et al., 2010). This evidence concerns the gene KCNH1 and Fibroadenoma.