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KMID : 0359020080360060361
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Korean Journal of Gastrointestinal Endoscopy
2008 Volume.36 No. 6 p.361 ~ p.365
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A Case of Esophageal Benign Schwannoma Removed by Endoscopic Mucosal Resection
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Cho Seok
Park Chang-Hwan
Ryang Dae-Yeul
Lim Sung-Ryoun
Chung Kyoung-Myeun
Jeong Hye-Kyong
Jung Phil-Jin
Lee Seung-Hwan
Yoon Kyung-Won
Kim Hyun-Soo
Choi Sung-Kyu
Rew Jong-Sun
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Abstract
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Esophageal schwannoma is a very rare neoplasm. The differentiation of schwannoma from the other submucosal tumors such as GISTs or leiomyoma is very difficult to do on the preoperative examination with performing esophagoscopy and computed tomography. The diagnosis is generally not confirmed until the histologic and immunohistochemical tests of the tumor are performed. A 38- year-old man presented to us with neck discomfort. The endoscopy showed a middle esophageal submucosal tumor that measured 12 mm in size and there were no mucosal changes. The endoscopic ultrasonography showed a tumor in the muscluaris mucosa layer without lymphadenopathy. After band ligation of the lower part of the tumor, it was removed by performing endoscopic mucosal resection and using a snare. A definitive diagnosis of esophageal benign schwannoma was made from the pathologic findings, which included positive immunohistochemical staining for S-100 protein and negative staining for C-kit, CD34 and actin. We report here on an esophageal benign schwannoma that was removed by endoscopic mucosal resection. (Korean J Gastrointest Endosc 2008;36:361-365)
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KEYWORD
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Esophagealschwannoma, S-100 protein, Endoscopicmucosalresection
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