Preoperatively predicting vessels encapsulating tumor clusters in hepatocellular carcinoma: Machine learning model based on contrast-enhanced computed tomography

Figure 4 Contrast enhanced computed tomography and immunohistochemical staining for cluster of differentiation 34. A: Vessels encapsulating tumor cluster (VETC) + hepatocellular carcinoma (HCC) in a 71-year-old man, a mass (the arrow) can be seen in the lateral left lobe of liver; B: Immunohistochemical image for cluster of differentiation 34 (CD34) presented vessels that encapsulated tumor clusters and formed cobweb-like networks (original magnification, × 100); C: VETC-HCC in a 52-year-old man, a mass (the arrow) can be seen in the anterior right lobe of the liver; D: Immunohistochemical image for CD34 presented vessels with discrete lumens (original magnification, × 100).