Metastatic clear cell sarcoma of the pancreas: A rare case report

Figure 3 The malignant tumor of the pancreatic body was accompanied by massive necrosis. A and B: Hematoxylin and eosin (H&E) showed tumor cells arranged in nests (A; × 10), with fibrous and vascular separation around the nests (B; × 20); C: The cells were oval or polygonal, with obvious nucleoli, and some cytoplasm was lightly stained or vacuolated (H&E, × 40); D-F: No metastasis was found in the surrounding lymph nodes and no tumor involvement was found in the resection margin. Immunohistochemical results: AE1/3 (-), CD56 (-), CgA (-), CK8/18(-), HMB45(+), Melan-A (+) (D), Ki-67 (60%+), S-100 (+)(E), SOX10 (+)(F), syn (-), β-catenin (+), PR (-).