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박창환 ( Park Chang Hwan ),이수정 ( Lee Su Jeong ),박정호 ( Park Jeong Ho ),박재홍 ( Park Jae Hong ),이완식 ( Lee Wan Sig ),주영은 ( Ju Yeong Eun ),김현수 ( Kim Hyeon Su ),최성규 ( Choe Seong Gyu ),유종선 ( Yu Jong Seon ),유성협 ( 대한소화기학회 2004 대한소화기학회지 Vol.43 No.3
Brunner`s gland hamartomas are rare tumors of duodenum, they are often discovered incidentally during esophagogastroduodenoscopy or upper gastrointestinal series. These tumors arise mainly in the duodenal bulb and can present with gastrointestinal hemorrhage and intestinal obstruction. Most of Brunner`s gland hamartomas are located within the range of the standard esophagogastroduodenoscope. However, they are rarely located below the third portion of duodenum. As well known, the small intestine, including the 4th portion of duodenum, jejunum, and ileum, is relatively inaccessible with routine endoscopy. Thus, the diagnosis of Brunner`s gland hamartoma in these area can be delayed up to several months after onset of symptoms. We report a case of Brunner`s gland hamartoma which was located in the fourth portion of the duodenum and presented as obscure gastrointestinal hemorrhage. Radiologic, surgical, and pathologic appearances are presented. (Korean J Gastroenterol 2004; 43:211-214)