LAUSR

Background Intravascular leiomyomatosis is a rare benign lesion with malignant potential. The cases are sporadic. Most patients have no clinical symptoms, and the preoperative diagnostic rate is low. Case 1 was misdiagnosed, passively managed during operation, recurred quickly, and underwent a secondary operation. We learned lessons from case 1 and treated the case 2 patient differently. The case 2 patient had a good prognosis. We hope the report will be helpful to other gynecologists. Case Summary Case 1: a 49-year-old woman complained of dysmenorrhea. Traditional ultrasound showed adenomyosis and a solid mass 6 * 3 cm in the right appendix. After routine examination, the patient underwent transabdominal total hysterectomy + bilateral salpingectomy + IVL tumor resection, with both ovaries kept. No medication was used after operation. Routine ultrasound was performed every 3 months. The disease recurred, and the patient underwent a secondary surgery 9 months after the first time. So far, 25 months after the secondary surgery, there is no sign of recurrence. Case 2: a 41-year-old woman underwent a routine body examination, where a left adnexal mass 7 cm was found. The patient underwent contrast-enhanced ultrasonography and was diagnosed and prepared well preoperatively. The patient underwent transabdominal total hysterectomy + bilateral salpingectomy + IVL tumor resection. GnRH-a drugs were used after operation for 3 cycle. Now, there is no sign of recurrence after operation for 23 months. Conclusion The incidence rate of IVL is low, and there are no typical clinical symptoms. It is easy to be ignored by gynecologists. Contrast-enhanced ultrasound is helpful to diagnose preoperatively and reduce misdiagnosis. Good preparation, full exploration of the pelvic and abdominal vessels, removal of lesions completely as much as possible, and anti-estrogen therapy after operation can reduce the recurrence of disease.