Objective To investigate the expression of dual-specificity phosphatase 6(DUSP6) in ovarian epithelial serous tumors and the relationship between DUSP6 expression and the clinicopathological parameters of ovarian serous cystoadenocarcinoma. Methods The expression of DUSP6 was analyzed by immunohistochemistry. Relationships between the expression of DUSP6 and the clinicopathological parameters of ovarian serous cystadenocarcinoma were also analyzed. Results DUSP6 expression was lower in patients with ovarian...