Several studies have investigated the expression of the TSPO protein levels in colorectal malignancies [20, 21, 22], meningiomas [23], glioma [24], glioblastoma [25], hepatocellular carcinoma [26], melanoma [27], and breast cancer [28], indicating that TSPO could play a role these cancers. The gene discussed is TSPO; the disease is meningioma.