Fig. 2
From: Detection of BCOR gene rearrangement in Ewing-like sarcoma: an important diagnostic tool
Histological and immunohistochemical features of BCS that received pre-operative chemotherapy. A The tumor cells arranged in perivascular pattern (before chemotherapy). B The tumors showed good response to chemotherapy, with total replacement of tumor cells by hypocellular loose fibrous tissue. C A focal area of scant perivascular tumor cells created a vascular tumor-like appearance. D The residual cells after chemotherapy were strong BCOR-positive in the nuclei. E The residual cells after chemotherapy were CCNB3 positive. F The residual cells after chemotherapy were TLE1 positive. Haematoxylin and eosin, original total magnification × 200 (A-C). Immunoperoxidase, original total magnification × 200 (D-F)