TNK2 and endometrium neoplasm: Overall, among the 112 tumors in this study, TNK2 was somatically mutated in 2.2% (1 of 45) of serous, 4.8% (1 of 21) of clear cell, 7.3% (3 of 41) of endometrioid, and 20% (1 of 5) of mixed histology endometrial tumors.