Perivascular Leiomyomatosis: A Unique Case Report

Intravascular Leiomyoma Considered Preoperatively as Uterine Sarcoma: A Rare Case

Intravascular leiomyoma (IVL) is usually defined as a histologically benign leiomyoma that originates in a uterine fibroid or the intrauterine vein wall and grows and expands intravenously. We report a case in which pelvic IVL was detected early and discuss the early diagnosis of and best treatment for this tumor.

Benign Metastasizing Leiomyomatosis to the Skin and Lungs, Intravenous Leiomyomatosis, and Leiomyomatosis Peritonealis Disseminata: A Series of Five Cases

Benign metastasizing leiomyomatosis (BML) is a rare disease that typically occurs in women with a history of uterine leiomyomatosis. Benign metastasizing leiomyomatosis occurs more frequently in the lungs but may also develop in other organs and tissues. Other unusual variants of extra-uterine leiomyomatosis include intravenous leiomyomatosis (IVL) and leiomyomatosis peritonealis disseminata (LPD). In this article, three cases of BML are presented. One case, in a premenopausal woman, presented cutaneous metastases. We also present a case of IVL and a case of LPD, which occurred in postmenopausal women. Given the rarity of BML, IVL, and LPD, the authors reviewed the literature and herein discuss the implications for treatment in all five cases. Evidence for treating BML, IVL, and LPD is still scarce, and data available from our series and other small series seem to point to the patient’s hormonal status playing a fundamental part in the treatment plan. Furthermore, a collecting bag when performing excision of uterine leiomyomas may help avoid the potential spreading of leiomyomatosis. Hysterectomized patients with chronic cough, frequent respiratory infections, abdominal discomfort, right heart failure, or non-specific symptoms should be actively screened for BML, IVL, and LPD. Treatment should be individualized according to each patient’s hormonal status and desires.

[Extra uterine leiomyomatosis: Review of the literature]

Extra-uterine leiomyomatosis is a rare pathology defined by the presence of benign smooth uterine muscle cells in unusual localizations, including different entities. It mainly affects premenopausal women with a medical history of uterine myoma with or without surgical treatment. Three main types are discribed: intraveinous leiomyomatosis, benign metastatisizing leiomyoma and leiomyomatosis peritonealis disseminata. The diagnosis may be complex with many differential diagnosis, and relies on histology. The treatment depends on multiple factors such as age, localization, size, symptoms and associated comorbidities. It is based on surgical resection and hormonal privation, surgical (adnexectomy) or medical (hormonotherapy). There is a high risk of recurrence. Some malignant evolutions have been reported, mostly leiomyosarcoma following peritoneal disseminated leiomyomatosis. Long term follow-up of these patients is mandatory. A particular manifestation of extra-uterine leiomyomatosis is the hereditary leiomyomatosis and renal cell carcinoma (HLRCC) syndrome. It is an autosomal dominant disorder which confers an increased risk of cutaneous and uterine leiomyomas and renal cell cancer, with a poor prognosis due to the urologic tumor.