CDH23 and esophageal squamous cell carcinoma: Similar to our experimental observations, TCGA has also reported a higher percentage of patients with advanced lymph node status [> N1, LUAD, 74%; LUSC, 93%; ESCC (N1), 92%] and metastasis stage (M1, LUAD, 72%; LUSC, 71%, ESCC, 78%) in the low‐Cdh23 expression group.