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First Account of Primary Leiomyosarcoma of the Lesser Omentum since Establishment of c-Kit Mutations in Gastrointestinal Stromal Tumors
Joint Authors
Saijo, Fumito
Sato, Kaoru
Handa, Tomoko
Narushima, Yoichi
Matsumura, Naoki
Iwama, Noriyuki
Nakayama, Fumie
Tokumura, Hiromi
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-04
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Background.
Primary omental leiomyosarcoma is an extremely rare type of tumor.
Leiomyosarcomas originating from the lesser omentum have not been reported since immunohistochemical staining for c-kit has been used for the diagnosis of mesenchymal abdominal tumors.
They are yet to be reported since gastrointestinal stromal tumors were categorized.
Here we reported a case of successful resection of a lesser omental leiomyosarcoma.
Case Presentation.
A 71-year-old man underwent ultrasonography at the outpatient clinic through which an upper abdominal tumor was identified.
Following computed tomography and endoscopy, a 4.5 cm submucosal tumor in the lesser curvature of the stomach was highly suspected.
A laparoscopic partial resection of the stomach was performed.
Histopathological examination revealed the tumor to be a leiomyosarcoma arising from the lesser omentum that did not invade the stomach.
Immunohistochemical staining showed that the tumor was negative for CD34, c-kit, and S-100 and positive for desmin and α-smooth muscle actin.
No recurrence had been observed 1 year after surgery without adjuvant chemotherapy.
Conclusions.
Primary lesser omental leiomyosarcoma, which is difficult to diagnose before surgery given the location of the primary tumor in the lesser omentum, has rarely been reported.
Considering the high possibility of malignancy, close observation is essential.
American Psychological Association (APA)
Saijo, Fumito& Sato, Kaoru& Handa, Tomoko& Narushima, Yoichi& Matsumura, Naoki& Iwama, Noriyuki…[et al.]. 2019. First Account of Primary Leiomyosarcoma of the Lesser Omentum since Establishment of c-Kit Mutations in Gastrointestinal Stromal Tumors. Case Reports in Surgery،Vol. 2019, no. 2019, pp.1-5.
https://search.emarefa.net/detail/BIM-1144617
Modern Language Association (MLA)
Saijo, Fumito…[et al.]. First Account of Primary Leiomyosarcoma of the Lesser Omentum since Establishment of c-Kit Mutations in Gastrointestinal Stromal Tumors. Case Reports in Surgery No. 2019 (2019), pp.1-5.
https://search.emarefa.net/detail/BIM-1144617
American Medical Association (AMA)
Saijo, Fumito& Sato, Kaoru& Handa, Tomoko& Narushima, Yoichi& Matsumura, Naoki& Iwama, Noriyuki…[et al.]. First Account of Primary Leiomyosarcoma of the Lesser Omentum since Establishment of c-Kit Mutations in Gastrointestinal Stromal Tumors. Case Reports in Surgery. 2019. Vol. 2019, no. 2019, pp.1-5.
https://search.emarefa.net/detail/BIM-1144617
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1144617