A Case of Parasitic Leiomyoma After Laparoscopic Myomectomy With Power Morcellator

As the growth of morcellated leiomyoma fragments is slow, iatrogenic parasitic leiomyomas are recognized as late complications of laparoscopic myomectomies. We present a case of parasitic leiomyoma diagnosed several years following laparoscopic myomectomy using a power morcellator. A 48-year-old Japanese woman presented with a pelvic mass. At 36 years old, she underwent laparotomic myomectomy using a power morcellator for uterine leiomyomas. Twelve years after the initial laparoscopic myomectomy, multiple subserous leiomyomas were detected. She was treated by open surgery. A solid tumor was found in the pouch of Douglas, which was firmly adhered to surrounding tissues. It was diagnosed as a parasitic leiomyoma. Gynecologists should be aware of the risk of iatrogenic parasitic leiomyoma development as a late complication of laparoscopic myomectomy using a power morcellator. Moreover, patients should be followed up at least until menopause.