Reduction in the size of a uterine leiomyoma following discontinuation of an estrogen-progestin contraceptive.

The effects of estrogen-progestin oral contraceptives on the volume of uterine leiomyomata is not well characterized. In this case report, a 45-year-old woman with a symptomatic uterine leiomyoma was observed to have a 47% reduction in myoma volume after discontinuation of an oral contraceptive. The volume of uterine leiomyomata may be influenced by oral contraceptives.