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Korean Journal of Clinical Oncology > Volume 16(2); 2020 > Article
Korean J Clin Oncol. 2020;16(2): 142-144.         doi: https://doi.org/10.14216/kjco.20022
Solitary fibrous tumor of the lesser omentum mimicking stomach gastrointestinal stromal tumor
Seonghoon Kim1 , Jaehyuk Heo1 , Pyungsu Kim1 , Hyeseung Han2 , Hoyoon Bang1
1Department of Gastrointestinal Surgery, Konkuk University Medical Center, Seoul, Korea
2Department of Pathology, Konkuk University Medical Center, Seoul, Korea
Corresponding Author: Seonghoon Kim ,Tel: +82-2-2030-7598, Fax: +82-2-2030-7739, Email: hybang@kuh.ac.kr
Received: June 12, 2020;  Accepted: November 30, 2020.
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Solitary fibrous tumor (SFT) is a mesenchymal tumor that rarely occurs in the abdomen. We report a very rare case of an abdominal SFT in the lesser omentum. A 39-year-old Korean man was referred to our center for management of a 9 cm incidental mass in the abdominal space found on a chest computed tomography (CT) during a routine medical examination. He had no symptoms, and there were no specific findings on physical examination. A contrast enhancement CT was performed, and an extraluminal gastrointestinal stromal tumor in the stomach or a pancreatic origin mass was suspected. Surgery was performed and an enclosed mass in the lesser omentum was observed, which was resected completely. The postoperative course was uneventful. Based on microscopy, the omental tumor was diagnosed as SFT.
Keywords: Solitary fibrous tumor | Abdominal cavity | Gastrointestinal stromal tumor
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