Malignant myopericytoma originating from the colon: A case report

Figure 2 Immunostaining results of the first surgery. A: The left half is tumor tissue and the right half is normal liver tissue. The tumor cells did not significantly invade the normal liver tissue. The arrow indicates a thickened but intact liver capsule (magnification power: 10 ×); B: Tumor cells in a concentric pattern around the blood vessels (magnification power: 100 ×); C: Abnormal mitotic figures appearing in the tumor cells (magnification power: 200 ×); D: Areas of necrosis within the tumor (magnification power: 100 ×); E: Diffuse smooth muscle actin expression in tumor cells (magnification power: 100 ×).