This overexpression is noticeable in majority of head and neck squamous cell carcinoma patients and is said to correlate with radioresistance observed in both mouse adenocarcinoma models and cancer patients.[10,11] Alongside EGFR, EGFR variant III (EGFRvIII), a mutant form of EGFR, can also be expressed. This evidence concerns the gene EGFR and adenocarcinoma.