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Korean J Helicobacter  Up Gastrointest Res > Volume 12(3); 2012 > Article
The Korean Journal of Helicobacter  and Upper Gastrointestinal Research 2012;12(3):198-201.
DOI: https://doi.org/10.7704/kjhugr.2012.12.3.198    Published online September 10, 2012.
A Case of Duodenal Leiomyoma Showing False Positive Fluorine-18-fluorodeoxyglucose Positron-Emission Tomography
Dae Soon Kwon, Beom Hee Kim, Beom Yong Yoon, Hee Seok Moon, Jae Kyu Sung, Hyun Yong Jeong
Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea. mhs1357@hanmail.net
Fluorine-18-fluorodeoxyglucose Positron-Emission Tomography에서 위양성을 보인 십이지장 평활근종 1예
권대순, 김범희, 윤범용, 문희석, 성재규, 정현용
충남대학교병원 의학전문대학원 내과학교실
Abstract
Duodenal leiomyomas are rare benign tumors of mesenchymal origin. Generally, Fluorodeoxyglucose (FDG)-PET would have a negative finding in leiomyomas. A 52-year-old man was referred to our hospital with melena. Gastroendoscopy revealed the presence of a huge submucosal tumor with ulceration at the duodenum bulb. Subsequent CT demonstrated a poorly enhanced oval mass adjoining the duodenal bulb. FDG-PET scan demonstrated an excessive accumulation of FDG in the lesion. A definitive diagnosis of duodenal leiomyoma was made on the basis of the pathologic finding of his surgical specimen. We report in this first case that duodenal leiomyma may show a potential pitfall of giving a positive FDG-PET result. Through this case, we would like to caution clinicians against PET-dependent evaluations of malignant potential of duodenal submucosal tumors.
Key Words: Duodenum; Leiomyoma; Positron emission tomography; False positive reactions
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