For further investigation of solid tumours, the invasive human epidermal growth factor 2 (HER2) protein part of the ERBB pathway is active in numerous cancers including pancreatic, ovarian, breast, gastric, lung, glioma/glioblastoma, colorectal, in the central nervous system, and is one of the most well-studied oncogenes (Masoud and Pagès 2017; Townsend et al. 2018). This evidence concerns the gene ERBB2 and cancer.