EGFR and breast carcinoma: A wide range of epithelial tumors, including breast cancer, is known to overexpress a transmembrane protein belonging to the ErbB receptor kinase family, namely EGFR (epidermal growth factor receptor 1) (Bhargava et al., 2005; Martinelli et al., 2009; Seshacharyulu et al., 2012; Changavi et al., 2015).