Lee Minkyung, Ryu Jeong Seon, Suh Chang Hae, Hyun In Young
Departments of Nuclear Medicine Internal Medicine Radiology, Inha University Hospital, Inha College of Medicine, Incheon, Korea.
Medicine (Baltimore). 2018 Feb;97(7):e9876. doi: 10.1097/MD.0000000000009876.
F-fluorodeoxyglucose (F-FDG) positron emission tomography/computed tomography (PET/CT) has the potential to become an important imaging tool for the diagnosis of suspected aortoiliac bypass graft infection (AGI).
A 76-year-old man presented with incidental findings of intense F-FDG activity in previous operation site of aortobiiliac bypass graft in the initial staging of small cell lung cancer (SCLC).
Based on F-FDG PET/CT examination, preliminary differential diagnosis was AGI.
We performed laboratory tests and Galliun-citrate (Ga) single photon emission computed tomography/computed tomography (SPECT/CT).
He had no constitutional symptoms and abnormal laboratory test results suggesting AGI. CT scan of the abdomen and pelvis showed no abnormal findings. Also, Ga planar scintigraphy and SPECT/CT imaging of the abdomen and pelvis failed to show abnormal Ga uptake in the same site of aortobiiliac bypass graft with F-FDG uptake.
We present a case with postoperative inflammatory aortobiiliac bypass graft which was misdiagnosed as AGI based on intense F-FDG activity seen at PET/CT imaging.
氟脱氧葡萄糖（F-FDG）正电子发射断层扫描/计算机断层扫描（PET/CT）有潜力成为诊断疑似主-髂动脉搭桥移植感染（AGI）的重要成像工具。
一名76岁男性在小细胞肺癌（SCLC）初始分期时，偶然发现主-髂动脉搭桥移植手术部位有强烈的F-FDG活性。
基于F-FDG PET/CT检查，初步鉴别诊断为AGI。
我们进行了实验室检查和枸橼酸镓（Ga）单光子发射计算机断层扫描/计算机断层扫描（SPECT/CT）。
他没有提示AGI的全身症状和异常实验室检查结果。腹部和骨盆CT扫描未发现异常。此外，腹部和骨盆的Ga平面闪烁显像及SPECT/CT成像未显示主-髂动脉搭桥移植部位有与F-FDG摄取相同部位的异常Ga摄取。
我们报告了一例术后炎性主-髂动脉搭桥移植病例，该病例基于PET/CT成像中看到的强烈F-FDG活性被误诊为AGI。
