Focal FDG Uptake in Epiploic Appendagitis Appearing Like Adenoma and/or Adenocarcinoma Anatomic Delineation by CT Can Aid in Differential Diagnosis

局部氟－18去氧葡萄糖增加的腸脂垂炎似腺瘤或腺癌，電腦斷層攝影有助於鑑別診斷

周慧姍(Hui-Shan Chou) ； 羅偉業(Wai-Yip Law) ； 陳遠光(Yen-Kung Chen)

《核子醫學暨分子影像雜誌》 31卷4期 (2018/12) Pp. 230-234

https://doi.org/10.6332/ANMMI.201812_31(4).0006

摘要

A 44-year-old asymptomatic man, who underwent whole-body positron emission tomography (PET) with F-18 fluorodeoxyglucose (FDG), was found to have a focal lesion in the hepatic flexure of colon region. Furthermore, colonoscopy examination revealed negative finding. A focal and well-circumscribed intra-abdominal area of increased FDG uptake may be interpreted as equivocal or suggestive of malignancy without anatomical localization. The most common feature of computed tomography (CT) in acute epiploic appendagitis is an oval lesion that has attenuation equivalent to that of fat, that abuts the anterior colonic wall, and that is surrounded by inflammatory changes. The wall of the colon may be thickened but is most often normal in thickness. Epiploic appendagitis is a self-limited inflammation of the appendices epiploicae. In this case, anatomic features provided by CT can help for imaging interpretation.

關鍵字

colon ； epiploic appendagitis ； FDG PET/CT

並列摘要

44歲男性，去氧葡萄糖(fluorodeoxyglucose, FDG)正子攝影發現結腸肝曲側有一邊界清楚、FDG攝取增加的病灶，疑似惡性腫瘤。大腸鏡並無病灶發現。急性腸脂垂炎為腸脂垂的自限性發炎，電腦斷層常呈橢圓形病灶、鄰接大腸前壁且周圍發炎，衰減量近於脂肪，結腸壁可能變厚，但程度多於正常範圍。此病例為電腦斷層之影像支持正子之判讀。

並列關鍵字

結腸 ； 急性腸脂垂炎 ； 氟－18去氧葡萄糖正子攝影／電腦斷層攝影