Until now, dysadherin expression has been studied in colorectal, pancreatic, gastric, esophageal, tongue and thyroid carcinomas, as well as in cervical squamous cell carcinomas and cutaneous malignant melanomas (Aoki et al, 2003; Sato et al, 2003; Shimamura et al, 2003, 2004; Nakanishi et al, 2004; Shimada et al, 2004a, 2004b; Wu et al, 2004; Nishizawa et al, 2005). This evidence concerns the gene FXYD5 and thyroid gland carcinoma.