PATZ1 and thyroid cancer: According to our previous data showing that the maintenance of PATZ1 expression in thyroid cancer cells was associated with expression of E-cadherin [11], we found that the rare cases of PATZ1 retention in thyroid cancer cells were associated with immuno-histochemical detection of E-cadherin, which was not or barely detectable in all the other thyroid cancer samples analyzed, where also PATZ1 expression was lost (Figure 5).