The expression profiles of this series was matched to a control cohort of 20 recently diagnosed cases, including 5 samples of LG-ESS harboring a JAZF1-SUZ12 fusion, 1 HG-ESS harboring a BCOR-ITD, 2 uterine tumors resembling ovarian sex cord tumors (UTROSCT) and 2 samples each of uterine leiomyoma and LMS. The gene discussed is SUZ12; the disease is tumor of uterus.