UNLABELLED The supraclavicular region is a common site for lymph node metastases. A commonly reported type of nonmalignant (18)F-FDG uptake on PET imaging in the supraclavicular region is "muscle uptake" purportedly due to muscle contraction in tense patients during the (18)F-FDG uptake phase. PET/CT offers the unique opportunity to correlate PET findings with CT anatomy in the supraclavicular ...

UNLABELLED The aim of this study was to evaluate the clinical value of positron emission tomography (PET) with 11C-labeled choline (CHOL) for the differential diagnosis of malignant head and neck tumors from benign lesions as compared with 18F-fluorodeoxyglucose PET. METHODS We studied 45 patients (28 males, 17 females, age range, 29-84 years) with suspected lesions in the head and neck regio...

UNLABELLED Assessment of the activity of rheumatoid arthritis (RA) is important for the prediction of future articular destruction. (18)F-FDG PET is known to represent the metabolic activity of inflammatory disease, which correlates with the pannus volume measured by MRI or ultrasonography. To evaluate the correlation between (18)F-FDG accumulation and RA pathology, we assessed (18)F-FDG accumu...

Metastatic tumors or secondary lymphoma of the kidney are rare and can often be missed on conventional computed tomography (CT) imaging. On the other hand, many types of metastatic tumor or lymphoma can be detected clearly as hotspots of elevated uptake on FDG PET. However, excreted FDG present in the urinary tract mimics these findings and interferes with image reading. Careful investigation o...

The aim of this article is to introduce the clinical utility of FDG PET as oncologic imaging. PET (positron emission tomography) is a newly developed imaging tool, and it has increased the accuracy of metabolic mapping of numerous malignancies, with significant impact on the management of cancer patients for initial staging, restaging and therapy monitoring. PET can provide functional informati...

686 Imaging of Acute and Chronic Aortic Dissection by F-FDG PET/CT Christian Reeps, Jaroslav Pelisek, Ralph A. Bundschuh, Manuela Gurdan, Alexander Zimmermann, Stefan Ockert, Martin Dobritz, Hans-Henning Eckstein, and Markus Essler 692 Value of Retrospective Fusion of PET and MR Images in Detection of Hepatic Metastases: Comparison with F-FDG PET/CT and Gd-EOB-DTPA–Enhanced MRI Olivio F. Donati...

A 38-year old man presented to the outpatient clinic with nonproductive cough and back pain. Positron emission tomography/ computed tomography images (Fig. 1) showed a pulmonary lesion in the right inferior lobe with 2-[18F] fluoro-2-deoxy-D-glucose (F-FDG) uptake and destructive bone lesions with intense FDG activity in T5 to T9 vertebrae. The diagnosis of tuberculosis was confirmed by broncho...

OBJECTIVES The objective was to evaluate inflammation in echolucent carotid artery plaques. BACKGROUND Ultrasound echolucency of carotid artery plaques has been proven to differentiate patients at high risk of stroke. On the other hand, positron emission tomography (PET) of plaques with the use of [(18)F]-fluorodeoxyglucose (FDG) identifies highly inflamed plaques, and the combination of mole...

AIM Preoperative detection of extranodal spread (ENS) in head and neck cancer can have important consequences for patient management. The aim of this study was to determine whether 18-fluorodeoxyglucose positron emission tomography ([18F]FDG PET) or a combination with Magnetic Resonance Imaging (MRI) could more accurately predict ENS, especially with the near availability of fully integrated [1...

Objective: To find prevalence and causes of fluorodeoxyglucose (FDG)-avid mediastinal lymph nodes in patients with colorectal cancer a tuberculosis-endemic area.Material Methods: For this study we enrolled who underwent Fluorine-18 positron emission tomography/computed tomography (F-18 FDG PET/CT). Then, PET/CT images were reviewed by nuclear medicine physician to uptake beyond the lung backgro...