In addition, 2 MMRd and 1 MMRp tumors lost E-cadherin focally in solid/undifferentiated areas, with retention of E-cadherin in more differentiated areas, a situation reminiscent to that reported in dedifferentiated endometrial carcinoma, a histological type that occurs more frequently in the context of MMRd [33]. Here, CDH1 is linked to endometrial carcinoma.