In the 267 triple-negative CMCs, similarly defined by Nielsen and Blows classifications, the stage (pathological tumor size, nodal stage, and distant metastasis), Ki-67 index, and peritumoral inflammation were strong and independent prognostic factors by multivariate analyses, but the expression of basal markers (EGFR and CK5/6) was not. This evidence concerns the gene MKI67 and neoplasm.