More examples of predictive molecular biomarkers routinely tested in clinical settings include the following: KIT/PDGFRA in gastrointestinal stromal tumors [10], BRAF/NRAS/KIT in advanced melanoma [11,12], IDH1/1p/19q codeletion/MGMT promoter methylation in brain neoplasms [13]. The gene discussed is KIT; the disease is gastrointestinal stromal tumor.