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Park, Park, Lee, and Lee: Primary leiomyosarcoma of the greater omentum
Case Report
Korean Journal of Obstetrics & Gynecology

Korean Journal of Obstetrics & Gynecology 2011; 54(3): 163-166.

Published online: 16 March 2011

DOI: https://doi.org/10.5468/KJOG.2011.54.3.163

Primary leiomyosarcoma of the greater omentum

Hyung Youl Park1, Tae Yong Park1, Kyung Ji Lee, MD2, Keun Ho Lee, MD1

1Department of Obstetrics and Gynecology, The Catholic University of Korea School of Medicine, Seoul, Korea.

2Department of Hospital Pathology, The Catholic University of Korea School of Medicine, Seoul, Korea.

Corresponding author: Keun Ho Lee, MD. Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, 505 Banpo-dong, Seocho-gu, Seoul, 137-701, Korea. Tel: +82-2-2258-6172, Fax: +82-2-595-1549, hohoho@catholic.ac.kr

Received 31 December 2010       Accepted 21 February 2011

Copyright © 2011. Korean Society of Obstetrics and Gynecology

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Leiomyosarcoma is a rare tumor that originates in the smooth muscle. The omentum has been rarely reported as a primary of occurrence with leiomyosarcoma. A 58-year-old woman presented with abdominal distension and palpable pelvic mass. Abdominal computed tomography scan showed 32×27×16 cm-sized heterogeneous enhancing mass in the pelvic and abdominal cavity. An exploratory laparotomy revealed a solid tumor in the greater omentum and total omentectomy and multiple biopsies were performed. The tumor was diagnosed as a leiomyosarcoma by histological and immunohistochemical examinations. We present here a case of primary leiomyosarcoma of the greater omentum with brief review of literature.

Keywords: Leiomyosarcoma, Omentum

Figures and Tables

Fig. 1
(A) Abdominal computed tomography showed heterogenous enhancement of the central area surrounded by the relatively enhanced outer part. There was no visible lymphadenopathy or metastasis. (B) Thirty cm sized grayish round mass is attached to greater omentum, which was histologically confirmed to be leiomyosarcoma.
kjog-54-163-g001
Fig. 2
(A) The tumor cells are slender or slightly plump cells with cytoplasmic longitudinal striation and moderate nuclear atypism (H&E, ×100, enlarged ×400). (B) This myxoid tumor are positive for smooth muscle actin (×100).
kjog-54-163-g002

References

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