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KMID : 0371320070730020183
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Journal of the Korean Surgical Society
2007 Volume.73 No. 2 p.183 ~ p.187
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Colonic Schwannoma
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Kang Dong-Baek
Kim Seung-Ho
Oh Jung-Teak
Park Won-Cheol
Lee Jeong-Kyun
Kim Hun-Soo
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Abstract
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Schwannoma is a common soft tissue tumor, but it appears to be rare among the spindle cell mesencymal tumors of the gastrointestinal tract. Gastrointestinal Schwannomas (GIS) are rare and most of them originate in the stomach or the small bowel. GIS of the colon is extremely rare. The most important issue to be addressed for this type of tumor is the difficulty in making the correct preoperative diagnosis. Less than 10% of cases have been diagnosed as schwannoma preoperatively. A 58-year-old man was found to have a 3.5cm sized submucosal transverse colon tumor on the preoperative colonoscopy, abdominal CT and MRI. Wedge resection was done and the submucosal mass was diagnosed as schwannoma on the immunochemical staining. The immunochemical results were negative staining for CD 117(KIT) and CD 34 and positive staining for S-100 protein, which is all consistent with schwannoma. We report here on the first case of colonic schwannoma in Korea, along with a review of the literature. (J Korean Surg Soc 2007;73:183-187)
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KEYWORD
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Gastrointestinal schwannoma, S-100 protein, Colon
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