Furthermore, the amplifications of ERBB2 (17q12), MEK2 (chr19p13), MTOR (1p36.2), VEGFR 3 (5q35.3), and VEGFA (6p12) genes were found to be correlated with CCA, hence posing as potential targets for therapeutics [26, 181–184]. The gene discussed is ERBB2; the disease is cholangiocarcinoma.