Figure 3. Low-magnification photomicrograph of TIPS tract (magnification x40, haematoxylin and eosin stain). (a) In the control group, from defects caused by stent struts to the lumen, there turned out to be a significant proliferation of fibroblast, which demonstrates pseudointimal hyperplasia (arrow). (b) In the treatment group, there was significantly less proliferation of fibroblast than in the control group (arrow).