A Case Report of Leiomyoma of the Transverse Mesocolon

Parasitic leiomyoma is a rare manifestation of uterine leiomyoma that loses its adherence to the uterus to attach to other pelvic or intra-abdominal organs. Most reported tumors presented during laparoscopic myomectomy or hysterectomy.We report here a case of spontaneous parasitic leiomyoma with torsion in a 30-year-old woman with no previous surgeries. She was diagnosed with a subserosal leiomyoma during pregnancy. She reported pain during her second trimester because of the leiomyoma, which disappeared with conservative treatment, and she eventually delivered at full-term. After 2 years, she opted for surgical removal of the leiomyoma. Through preoperative transvaginal ultrasonography, we suggested the tumor to be ovarian in origin because it was located far from the uterus.Laparoscopy revealed the tumor to be separated from the uterus with a 720° torsion on the vesicouterine pouch.A postoperative histopathological examination diagnosed the tumor as a parasitic leiomyoma. There have only been 24 reports of spontaneous parasitic leiomyoma, and this is the first case with associated torsion in Japan. We believe that we have experienced an extremely rare case of leiomyoma.

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A Smooth Muscle Tumor of Uncertain Malignant Potential with Cystic Formation of the Small Intestine Mesentery

Nagao

Sawatsubashi

Saijo

et al. 2015

Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi

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A 20-year-old woman visited a nearby clinic with a complaint of a left lower abdominal quadrant mass. She was referred to our department for intensive examination and treatment. The intensive examination revealed a neoplastic cyst of the small intestine or mesentery. Laparoscopic surgery was performed. Operative findings revealed a 60 mmsized tumor on the mesojejunum, 30 cm proximal to the anus from the ligament of Treitz. Partial resection of the small bowel was performed because the tumor was in very close contact with the jejunum. Postoperative pathologic results revealed a smooth muscle tumor with cystic formation. No evidence of recurrence has been found for 2 years 6 months postoperatively. Leiomyoma of the small intestine mesentery is very rare. Furthermore, leiomyoma with cystic formation is extremely rare. Thus, we report this case with a review of the literature.

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A Case Report of Leiomyoma of the Transverse Mesocolon

Cited by 3 publications

References 4 publications

早期直腸癌術後再発と鑑別困難なpet集積を伴う腸間膜平滑筋腫の1例

早期直腸癌術後再発と鑑別困難なpet集積を伴う腸間膜平滑筋腫の1例

A case of spontaneous parasitic leiomyoma with torsion diagnosed by laparoscopy

A Smooth Muscle Tumor of Uncertain Malignant Potential with Cystic Formation of the Small Intestine Mesentery

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