Figure 4.
Illustration of TNBC in a 29-year-old female patient. (A, B) Regular shape, circumscribed margin and posterior acoustic enhancement in sonogram (BI-RADS:4A); (C) Histological grade III in HE staining (original magnification × 400); (D) Eighty percent Ki-67 expression in IHC staining (original magnification × 200).