Breast and dorsal spine relapse of granulocytic sarcoma after allogeneic stem cell transplantation for acute myelomonocytic leukemia: A case report

Figure 4 Granulocytic sarcoma of the breast in pathological study. A: Histology showed a diffuse infiltrate of medium-sized cells with finely dispersed chromatin and small distinct nucleoli with scant cytoplasm (hematoxylin and eosin, × 200 magnification); B-F: Granulocytic sarcoma of the breast was positive for myeloperoxidase (B: × 200 magnification), CD117 (C: × 200 magnification), CD34 (D: × 200 magnification), CD68 (E: × 200 magnification) and Ki67 proliferation index approximately 80% (F: × 200 magnification).