Uterine carcinosarcoma (UCS) is a rare but highly aggressive malignancy. A small subset demonstrates pathogenic polymerase-epsilon (POLE) exonuclease-domain mutations. POLE mutated endometrial cancers are generally regarded as having a favourable prognosis despite high-grade histology; however, POLE-mutated carcinosarcomas are exceptionally rare, making
Gregory Botha (Sun,) studied this question.