The incidence of unexpected uterine malignancy in women undergoing hysteroscopic myomectomy or polypectomy: A national population-based study

The incidence of UUM diagnosed after hysteroscopic myomectomy (0.86%) or polypectomy (1.11%) was higher than that of UUM diagnosed after hysterectomy (0.19%) or myomectomy (0.12%) for presumed benign leiomyoma. The incidence of UUM increased over the age of 50.