Intravenous Leiomyomatosis of the Uterus Extending to the Right Atrium: A Case Report.

Intravenous leiomyomatosis (IVL) remains scarcely reported, and complete tumor resection is the recommended treatment. Herein, we present a comprehensive review of the case of a 52-year-old woman who suffered from recurrent syncope episodes due to IVL with intracardiac extension to the right atrium. Partial tumor resection and postoperative hormone therapy were conducted first. However, the 6-month postoperative follow-up computed tomography scan revealed a tendency for the IVL to increase in size, and complete resection was conducted. In this article, we would like to emphasize that partial resection followed by hormone therapy is insufficient for IVL, and complete resection should be chosen.