Solid pseudopapillary neoplasm of the pancreas in a young male with main pancreatic duct dilatation: A case report

Figure 7 Hematoxylin and eosin staining and pathological findings. A: Cut surface of the resected specimen is a white solid mass separate from the pancreas; B: Histologically, hematoxylin and eosin staining (× 200) shows a pseudopapillary structure and a pseudorosette structure like the biopsy sample obtained by endoscopic ultrasound-guided fine needle; C and D: Immunostaining also shows that the tumor is β-catenin-positive (C, × 20) and CD10-positive (D, × 20). The pathological findings result in the final diagnosis of SPN. The main pancreatic duct is very narrow; E: Histologically, there is no malignant infiltration, and the tumor surrounds the main pancreatic duct, compressing it from all directions (× 40).