Benign Metastasizing Leiomyoma of the Lung: Potential Role of Low-Grade Malignancy

Abstract

We report here 2 cases of multiple metastatic lung tumors after hysterectomy for leiomyoma. One patient was diagnosed as having a benign metastasizing leiomyoma (BML), while the other patient simultaneously developed a left pelvic tumor and multiple lung tumors, both of which were finally diagnosed as low-grade endometrial stromal sarcomas (ESSs). The metastatic potential of BML is not completely understood, but previously reported cases of BML may include low-grade ESS, which may play a significant role in the metastasis of benign uterine tumors.

Key words

Benign metastasizing leiomyoma - metastasis - endometrial stromal sarcoma

References

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