Pelvic mass as the initial symptom of ovarian leiomyoma

OVARIAN leiomyoma is a rare mesenchymal tumor, accounting for only 1% of benign ovarian neoplasms (1). Fewer than 50 cases have been described in the literature (2). The paucity of published reports may be due in part to the difficulty in clearly distinguishing ovarian leiomyoma from the more common fibrothecoma. We describe the case of a patient with leiomyoma of the ovary whose initial symptom was an adnexal mass and discuss the clinical and pathologic features that distinguish this leiomyoma from fibrothecoma.