However, there were no areas of obvious positive staining in the tumor tissues of group D. The MVD values of each group were determined according to the CD34-MVD method and were 29.6 ± 4.2, 22.2 ± 3.2, 17.8 ± 3.0, and 7.2 ± 1.5 for groups A, B, C, and D, respectively. Here, CD34 is linked to neoplasm.