Pediatric case of colonic perivascular epithelioid cell tumor complicated with intussusception and anal incarceration: A case report

Figure 4 Pathology and immunohistochemistry results. A: 40 × magnification showing that the tumor was located in the intestinal wall, and the tumor cells were arranged in nests or acini; B: 100 × magnification showing that the tumor cells were transparent or eosinophilic granular; C: 200 × magnification showing abundant capillaries in the interstitium; D: Human melanoma black 45 (+) detected by the EnVision method.