Abstract. Bristow RE, Montz FJ. Leiomyomatosis peritonealis disseminata and ovarian Brenner tumor associated with tamoxifen use.
Tamoxifen is frequently administered as adjuvant therapy for breast carcinoma and produces weak estrogen agonist effects in estrogen sensitive tissues. In addition to producing a measurable increase in the risk of endometrial carcinoma, tamoxifen has also been associated with increasing size of uterine leiomyomata as well as the development of new leiomyomata. As the indications for tamoxifen therapy expand, surveillance for additional potential associated adverse outcomes is warranted.
A 44-year-old woman with a history of bilateral breast carcinoma presented with leiomyomatosis peritonealis disseminata and a right ovarian Brenner tumor 18 months after beginning adjuvant tamoxifen therapy. Although a causal link cannot be proven, this case is the second reported association between leiomyomatosis peritonealis disseminata, an ovarian Brenner tumor, and tamoxifen use for the treatment of breast carcinoma. Given the hormonal sensitivity of leiomyomatosis peritonealis disseminata, both mutagenic and mitogenic effects of tamoxifen on this rare entity must be considered. In the setting of continued hormonal treatment for breast carcinoma, the management of leiomyomatosis peritonealis disseminata presents unique clinical challenges.
- Brenner tumor
- leiomyomatosis peritonealis disseminata
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