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Uterine Leiomyosarcoma Mimicking Benign Submucosal Leiomyoma

Obstetrics and Gynecology, Saginaw, Michigan, madfam5{at}airadv.net

Uterine leiomyosarcoma is a rare, aggressive tumor of the smooth muscle with a typical intramural location. Patients present with abnormal uterine bleeding and an enlarged pelvic mass with clinical signs and symptoms that are virtually indistinguishable from benign leiomyoma. Sonographically, leiomyosarcoma presents as a large solitary tumor that closely resembles a benign leiomyoma that may be undergoing degenerative changes. Because of the infiltrative nature of leiomyosarcoma, invasion into the myometrium may be demonstrated. Leiomyosarcoma has a poor prognosis due to local pelvic recurrences and spread to distant sites. This case report demonstrates a fast-growing submucosal leiomyosarcoma with characteristic sonographic echo enhancement and infiltration into the myometrium.

Key Words: abnormal uterine bleeding • myometrium • sonography • uterine leiomyosarcoma

Journal of Diagnostic Medical Sonography, Vol. 23, No. 6, 368-371 (2007)
DOI: 10.1177/8756479307309414


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