Figure 4
The histology of axillary lymph node metastasis in the patient. (a) The obvious metastasis is detected in one lymph node and the infiltrating tumors cells appear in a cribriform pattern. (b) A micro-metastasis is detected in one lymph node. A magnified view is shown in the boxed area b1; it shows the micro-metastatic cells in a cribriform growth pattern. (c) One lymph node indicates the infiltration of paranodal tissue. A magnified view is shown in the boxed area c1, also showing the invasive cells in a cribriform style. Scale bars = 2.5 μm in a-c, 20 μm in b1 and c1.