KRAS and invasive ductal breast carcinoma: According to the COSMIC database, PIK3CA H1047R, PIK3CA E545K, KRAS G12D, KRAS G12V, HRAS G12D, and BRAF V600E mutations occur in 10.5%, 5.41%, 0.31%, 0.16%, 0%, and 0% of invasive ductal carcinomas, respectively (Myers et al. 2019).