Fibromatosis-like metaplastic carcinoma of the breast: Two case reports

Figure 4 Postoperative pathology and immunohistochemistry of right breast cancer. A: HE staining showed that the tumor was composed of spindle cells with mild morphology and mild atypia of the tumor cells; B: Envision test showed tumor cells positive for CKPan; C: Envision test showed tumor cells positive for p63; D: Envision test showed tumor cells positive for CK5/6; E: Envision test showed approximately 20% Ki-67 for tumor cells. F: HE staining showed that the tumor was composed of spindle cells with mild morphology, and the tumor cells were mildly atypical; G: Tumor cells were positive for CKPan by Envision assay; H: Tumor cells were positive for p63 by Envision assay; I: Tumor cells were positive for CK5/6 by Envision assay; J: Ki-67 in tumor cells detected by Envision assay was about 20%. Original magnification: × 400; Scale bars: 100 μm.