CDH1 and head and neck squamous cell carcinoma: Negative correlations between AEG‐1 and E‐cadherin, or positive correlations between AEG‐1 and vimentin, have been identified in hepatocellular carcinoma 44, lung cancer 45, laryngeal squamous cell carcinoma 46, squamous cell carcinoma of the head and neck 47 and osteosarcoma 48.