Korean J Obstet Gynecol.  2011 Nov;54(11):731-735. 10.5468/KJOG.2011.54.11.731.

Parasitic myoma in mesentery mimicking gastrointestinal stromal tumor: A case of laparoscopic myomectomy with single port approach

• Kim HJ
• Ryu JH
• Kim TJ
• Kim BG
• Bae DS

• KMID: 2274116
• DOI: http://doi.org/10.5468/KJOG.2011.54.11.731

Abstract

Gastrointestinal stromal tumor (GIST) is the most common non-epithelial tumor in the gastrointestinal tract, and express a highly specific marker called c-kit (CD117). The majorinty of GISTs arise in the stomach (60%) and small bowel (30%), and remaining 10% in the other gastrointestinal tract. It also occurs, rarely, in non-gastrointestinal tract. We experienced a 42-year-old woman who was transferred to our hospital with the impression of GIST by positron emission tomography-computed tomography, and after the single port approach laparoscopy, finally diagnosed as parasitic myoma. Hysterectomy and complete resection of 14cm sized mesenteric mass was done via single port laparoscopy. After the immunohistochemistry test, the final pathologic diagnosis was confirmed the diagnosis of myoma. We report here the case of parasitic myoma mimicking GIST with brief review of articles.

Keyword

Parasitic myoma; Gastrointestinal stromal tumors; Single-port approach

MeSH Terms

Adult
Electrons
Female
Gastrointestinal Stromal Tumors
Gastrointestinal Tract
Humans
Hysterectomy
Immunohistochemistry
Laparoscopy
Mesentery
Myoma
Stomach

Figure

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  Fig. 1 Irregular shaped mass (white arrow) with central necrosis and high fludeoxyglucose uptake in the periphery is found in the right pelvic cavity and the size of tumor was about 12 cm in longest diameter in preoperative positron emission tomography-computed tomography scan.

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  Fig. 2 Under laparoscopic evaluation, the mass is located under the mesentery of the colon and small intestines with adhesion.

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  Fig. 3 The tumor is formed by interlacing bundles of smooth muscle cells with multifocal hyaline degeneration. There is no pleomorphism, atypia or excessive mitotic figures (H&E, ×100).

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