In Grade II diffuse fibrillary astrocytoma, Tspo mRNA was observed in the cytoplasm of the following structures: tumour cells that appear as glial cells having an oval shape appearance, neurons such as stellate cells, and oligodendrocytes, in the astrocytic processes that appear as fibrillary background, in the nuclei of microglia, and in the nuclei and cytoplasm of fusiform cells (Figure 8E,F). This evidence concerns the gene TSPO and neoplasm.