In more recent data, CK7 expression was detected in 90.4% (206/228) of EEC cases, 93.3% (70/75) of serous EC cases, 53.8% (7/13) of EC G3 cases, and in 87.5% (7/8) of clear-cell carcinoma cases [21]. Here, KRT7 is linked to clear cell adenocarcinoma.