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

Figure 2 Puncture pathology and immunohistochemistry of right breast mass. A: HE staining showed that the tumor was composed of spindle cells with mild morphology and mild atypia of the tumor cells; B: Tumor cells were positive for CKPan by Envision assay; C: Envision test showed that tumor cells were positive for p63; D: Envision test showed tumor cells positive for CK5/6; E: Envision test showed approximately 15% Ki-67 for tumor cells. F: HE stained tumor was composed of spindle cells with mild morphology and mild atypia of tumor cells; G: Tumor cells were positive for CKPan by Envision assay; H: Tumor cells were positive for p63 by Envision assay; I: Tumor cells were partially positive for CK5/6 by Envision assay; J: Ki-67 hotspot area of tumor cells detected by Envision method was about + 25%. Original magnification: × 400; Scale bars: 100 μm.