Analysis of the Ivy Gap Dataset showed PCDHGC3 mRNA expression in areas of GBM with signs of microvascular proliferation (compared to the perinecrotic zone, infiltrating tumors, and cellular tumors; p < 0.05) or with hyperplastic blood vessels (compared to infiltrating tumor cells and cellular tumors; p < 0.05) to be significantly decreased, whereas PCDHGC3 mRNA expression in the cellular part of GBMs appeared to be significantly enhanced (compared to leading edge, pseudopalisading cells, hyperplastic blood vessels, and microvascular proliferation; p < 0.05) (Figure 1b). This evidence concerns the gene PCDHGC3 and neoplasm.