Lymph Node Uptake of 18F-Fluorodeoxyglucose Detected With Positron Emission Tomography/Computed Tomography Mimicking Malignant Lymphoma in a Patient With Kikuchi Disease

2010 ◽  
Vol 10 (6) ◽  
pp. 477-479 ◽  
Author(s):  
Min-jia Zhang ◽  
Li Xiao ◽  
Yu-hua Zhu ◽  
Jian-jun Jiang ◽  
Mao-song Jiang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Positron Emission Tomography ◽  
Lymph Node ◽  
Malignant Lymphoma ◽  
Emission Tomography ◽  
18F Fluorodeoxyglucose ◽  
Positron Emission

scholarly journals Is contrast material needed after treatment of malignant lymphoma in positron emission tomography/computed tomography?

2010 ◽  
Vol 25 (2) ◽  
pp. 93-99 ◽  
Author(s):  
Yuji Nakamoto ◽  
Munenobu Nogami ◽  
Ryo Sugihara ◽  
Kazuro Sugimura ◽  
Michio Senda ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Positron Emission Tomography ◽  
Malignant Lymphoma ◽  
Contrast Material ◽  
Emission Tomography ◽  
Positron Emission

scholarly journals 18F-fluorideoxyglucose positron emission tomography/computed tomography imaging: Artifacts and pitfalls

2015 ◽  
Vol 68 (1-2) ◽  
pp. 41-48
Author(s):  
Jasna Mihailovic ◽  
Emil Matovina ◽  
Katarina Nikoletic
Keyword(s):  
Computed Tomography ◽  
Positron Emission Tomography ◽  
Healing Process ◽  
Emission Tomography ◽  
Benign Tumors ◽  
Positive Finding ◽  
Computed Tomography Imaging ◽  
Tomography Imaging ◽  
18F Fluorodeoxyglucose ◽  
Positron Emission

18F-fluorodeoxyglucose, being a radiolabeled glucose analogue, is a marker of glucose metabolism indicator. Since glucose uptake is increased in malignant tumors, its major application is in oncology. However, an increased 18F- fluorodeoxyglucose uptake is found in various benign tumors, granulomatous diseases, tuberculosis, inflammation, infection. A healing process may be interpreted as a false positive finding. In contrast, some types of renal cell cancers and lymphomas, neuroendocrine tumors, colonic mucinous adenocarcinomata, hepatocellular carcinomas, prostate cancer, and carcinoid tumors have low 18Ffluorodeoxyglucose avidity which may give a misleading false negative result. In addition, an increased 18F-fluorodeoxyglucose uptake in the bone marrow may be seen in oncologycal patients following various types of therapy. Besides the advantages of hybrid positron emission tomography-computed tomography imaging, this dual-modality scanning may produce their own specific artifacts due to different causes, such as metallic implants, respiratory motion, contrast medium and truncation. Proper patient preparation is required to minimize the potential artifactual uptake patterns that make reporting difficult. It is important to learn about proper quality control, imaging and reconstruction and to be familiar with potential artifacts and pitfalls for the accurate interpretation of 18F-fluorodeoxyglucose positron emission tomography-computed tomography.

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