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Table of Contents
CLINICAL IMAGE
Year : 2020  |  Volume : 9  |  Issue : 2  |  Page : 108-109

Parasitic leiomyoma


1 Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital (Linkou); Department of Obstetrics and Gynecology, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
2 Taipei Medical University School of Nursing, Taipei, Taiwan

Date of Submission23-Mar-2020
Date of Decision27-Mar-2020
Date of Acceptance30-Mar-2020
Date of Web Publication28-Apr-2020

Correspondence Address:
Dr. Chih- Feng Yen
Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital (Linkou), No. 5, Fu.Hsin St., Kwei.Shan, Tao-Yuan 3330
Taiwan
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/GMIT.GMIT_35_20

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How to cite this article:
Pai AH, Yen CF, Lin SL. Parasitic leiomyoma. Gynecol Minim Invasive Ther 2020;9:108-9

How to cite this URL:
Pai AH, Yen CF, Lin SL. Parasitic leiomyoma. Gynecol Minim Invasive Ther [serial online] 2020 [cited 2020 Sep 29];9:108-9. Available from: http://www.e-gmit.com/text.asp?2020/9/2/108/283336



We report a clinical image of a patient with a suspected iatrogenic parasitic leiomyoma, given her prior history of laparoscopic myomectomy.

A 42-year-old, gravida 1, para 1 female, with the surgical history of laparoscopic myomectomy many years ago, presented with progressively severe dysmenorrhea and hypermenorrhea in recent months. Transvaginal ultrasound showed a large mass, greater than 10 cm in size, situated at the uterine fundus. Under the impression of recurrent uterine myoma, she was admitted for laparoscopic myomectomy. Surprisingly, upon entry into the pelvic cavity, the uterus and bilateral adnexa were all grossly normal [Figure 1]a. A large mass (12 cm × 6 cm × 9 cm), isolated from the uterus but connected to the right posterior peritoneum, was seen [Figure 1]b and c]. Coagulation of its vascular supplies and careful dissection from the surrounding tissues were performed to excise the mass [Figure 1]d, which weighed 298 g. The patient recovered smoothly postoperatively, and the final pathology indicated leiomyoma.
Figure 1: (a) Upon entry into the peritoneum, a large, solid mass was seen in proximity to the uterus. (b) Careful inspection revealed adherence of the mass to the posterior peritoneum. (c) A stalk with feeding vessels from the peritoneum to the mass was identified. (d) After excision, the uterus and bilateral adnexa were unharmed while an electrocauterized postoperative lesion could be seen on the peritoneum near sacral promontory

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Parasitic leiomyoma has no connection with the uterus itself and obtains its blood supplies from the surrounding tissues. It is classified as subgroup 8 in the FIGO classification.[1] First described in the early 1900s, parasitic leiomyoma appeared to be a rare entity until the advent of laparoscopic surgeries and associated power morcellation, which increased the number of such clinical cases in recent years.[2],[3]. Although atypically located myoma may originate de novo from myoblasts in the pelvic mesenchymal tissue, the tumor described in our case most likely arose from the iatrogenic spread of myoma debris by the morcellator. It then obtained its vascular supply from the pelvic tissue [Figure 1]b and c].[4] When approaching female patients with abdominal masses, especially those with prior surgical history, we should include parasitic myoma as part of her differential diagnoses.

Ethical approval

This study has been approved by the institutional review board of the Human Investigation and Ethical Committee of Chang Gung Medical Foundation (Project No. 202000327B0; March 18, 2020). The IRB approves the waiver of the participants' consent.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Munro MG, Critchley HO, Broder MS, Fraser IS; FIGO Working Group on Menstrual Disorders. FIGO classification system (PALM-COEIN) for causes of abnormal uterine bleeding in nongravid women of reproductive age. Int J Gynaecol Obstet 2011 Apr; 113:3-13.  Back to cited text no. 1
    
2.
Van der Meulen JF, Pijnenborg JM, Boomsma CM, Verberg MF, Geomini PM, Bongers MY. Parasitic myoma after laparoscopic morcellation: A systematic review of the literature. BJOG 2016;123:69-75.  Back to cited text no. 2
    
3.
Lete I, Gonzalez J, Ugarte L, Barbadillo N, Lapuente O, Alvarez-Sala J. Parasitic leiomyomas: A systematic review. Eur J Obstet Gynecol Reprod Biol 2016;203:250-9.  Back to cited text no. 3
    
4.
Paul PG, Shintre H, Mehta S, Gulati G, Paul G, Mannur S. Parasitic myomas: An unusual risk after morcellation. Gynecol Minim Invasive Ther 2018;7:124-6.  Back to cited text no. 4
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[Pubmed] | [DOI]



 

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