Epithelial‐mesenchymal transition (EMT), a biological process in which epithelial cells transform into mesenchymal cells, is regarded as one of the most important mechanisms of cell migration and tumour metastasis, which is closely related to clinical outcomes.31, 32 EMT is characterized by the loss of expression of proteins that promote cell‐to‐cell contact, such as E‐cadherin, and gain of mesenchymal markers, such as N‐cadherin and vimentin. Here, CDH2 is linked to neoplasm.