In 2010, she underwent left quadrantectomy surgery plus sentinel lymph node biopsy (SNLB) for a moderately differentiated invasive ductal carcinoma (IDC), non-specific type (NST), with ER 98%, PR 80%, Ki-67 10%, HER-2 negative, immunohistochemistry (IHC) profile (stage pT1c pN0). Here, MKI67 is linked to invasive ductal breast carcinoma.