Long-term results for expectant management of ultrasonographically diagnosed benign ovarian teratomas

OBJECTIVE:To assess the natural history of ultrasonographically diagnosed benign ovarian teratomas in asymptomatic women.METHODS:We conducted a retrospective observational cohort study of 408 women (mean age 36.6 years, range 14–81 years) diagnosed as having an ovarian teratoma by transvaginal ultra