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Updated: Aug 19, 2026

Pathological Analysis of Lung Metastasis Following Lateral Tail-Vein Injection of Tumor Cells
Published on: May 20, 2020
[Clinical and pathological analysis of intravenous leiomyomatosis]
Shui-qing Ma1, Chun-mei Bai, Xiao-hong Yu
1Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China.
Objective:
To investigate the clinical and biological characteristics of intravenous leiomyomatosis and the treatment methods, as well as their effect on prognosis.
Methods:
The clinical and pathologic data of 7 patients with intravenous leiomyomatosis of the uterus admitted to our hospital from June 1992 to June 2003 were analyzed retrospectively. All the cases were followed up.
Results:
All the patients complained of pelvic mass. Three of them had enlarged uterus which was over 12 gestational week, 2 of them had prolonged menstruation and hypermenorrhea, 1 of them presented with postmenopausal bleeding. B-ultrasound examination showed 4 leiomyomas, 1 sarcoma of uterus, and 3 ovarian tumors. No intravenous leiomyomatosis within uterus was diagnosed preoperatively. A resection of the mass and a total abdominal hysterectomy with bilateral salpingo-oophorectomy were performed in 4 cases.
Conclusions:
Intravenous leiomyomatosis has special and quasi-malignant biological behavior. The prognosis can be improved if the disease could be correctly diagnosed during the operation and treated with combined modality therapy and intensively followed up after operation.

