| A Case of Duodenal Leiomyoma Showing False Positive Fluorine-18-fluorodeoxyglucose Positron-Emission Tomography |
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Dae Soon Kwon, Beom Hee Kim, Beom Yong Yoon, Hee Seok Moon, Jae Kyu Sung, Hyun Yong Jeong |
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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 |
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권대순, 김범희, 윤범용, 문희석, 성재규, 정현용 |
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충남대학교병원 의학전문대학원 내과학교실 |
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| Abstract |
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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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