Although the underlying molecular mechanisms of breast cancer pathogenesis remain mainly undiscovered, multiple genetic and epigenetic alterations have been connected to breast cancer, including the activation of oncogenes (MYC, ERBB2 and CCND1) [3–5] and the mutation or deletion of tumor suppressor genes (TP53 and CDH1) [6,7]. Here, CDH1 is linked to breast carcinoma.