Benign metastasizing uterine leiomyoma. Multiple lymph nodal metastases.

A case of histologically benign lymph nodal metastases from a uterine leiomyoma in a 27-year-old woman is reported. It is postulated that fragments of a leiomyoma, detached at the time of endometrial curettage, entered dilated lymphatic channels in or adjacent to a large projecting submucous leiomyoma, and seeded several pelvic and para-aortic lymph nodes. During an interval of 8 years, these grew slowly and did not infiltrate the perinodal tissues or give rise to secondary metastases.