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A Case of Duodenal Gastrointestinal Stromal Tumor Mimicking a Vascular Neoplasm  

Yang, Jung-Kyung (Department of Internal Medicine, Konyang University College of Medicine)
Kim, Yong-Seok (Department of Internal Medicine, Konyang University College of Medicine)
Koo, Hoon-Sup (Department of Internal Medicine, Konyang University College of Medicine)
Kim, Kwang-Il (Department of Internal Medicine, Konyang University College of Medicine)
Kim, Sun-Moon (Department of Internal Medicine, Konyang University College of Medicine)
Im, Euyi-Hyeog (Department of Internal Medicine, Konyang University College of Medicine)
Huh, Kyu-Chan (Department of Internal Medicine, Konyang University College of Medicine)
Lee, Sang-Eok (Department of General Surgery, Konyang University College of Medicine)
Publication Information
Clinical Endoscopy / v.41, no.1, 2010 , pp. 26-30 More about this Journal
Abstract
Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasm of the gastrointestinal tract. They are preferentially located in the stomach and small intestine. However, the duodenum is an unusual location for GIST. Here we present a case of a 67-year-old woman with a GIST of the 3rd portion of duodenum mimicking vascular neoplasm as an obscure acute gastrointestinal bleeding. The upper gastrointestinal endoscopy and colonoscopy failed to find the lesion. Finally, a large protruded lesion with ulcer was found at the 3rd portion of duodenum using a colonoscope through the oral approach. A spurting bleeding was developed during hypertonic saline epinephrine injection for treatment of oozing bleeding at the margin of the ulcer. Abdominal 3D CT-angiography showed a round and hypervascular structure at the posterior wall of duodenum. A wedge resection of the third portion of the duodenum was performed. Microscopic findings revealed GIST.
Keywords
GIST; Duodenum; Vascular neoplasm;
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