Generalized lymph node activation after Influenza vaccination on 18F FDG-PET/CT imaging, an important pitfall in PET interpretation

Generalized Lymph Node Activation after Influenza Vaccination on 18F FDG-PET/CT Imaging, an Important Pitfall in PET Interpretation

We report on a 59-year-old female patient with an infected vascular graft investigated with 18F FDG-PET/CT. The first of two studies showed FDG activity in the left deltoid and ipsilateral axillary lymph nodes explained by influenza vaccination the day prior. The second 18F FDG-PET/CT showed multiple FDG-avid lymph nodes on both sides of the diaphragm without tracer accumulation at the vaccinat...

Scar sarcoidosis on 18F-FDG PET/CT

18F-labeled fluoro-2-deoxyglucose positron emission tomography/ computed tomography (18F-FDG PET/CT) is an important imaging modality in the clinical workup of patients with chronic inflammatory disorders which present quite often with a fever of unknown origin. Sarcoidosis is a multisystem chronic inflammatory disorder with a wide clinical spectrum that can involve different organs. The diagno...

Lymph node tuberculosis mimicking malignancy on 18F-FDG PET/CT in two patients: A case report

18F-fluorodeoxyglucose positron emission/computed tomography (18F-FDG PET/CT) imaging, an established procedure for evaluation of malignancy, reports an increased 18F-FDG uptake in acute or chronic inflammatory condition. Lymph node tuberculosis (LNTB) is the most common form of extrapulmonary tuberculosis. However, the absence of clinical symptoms and bacteriological basis makes it difficult t...

Pitfall of 18F-FDG-PET imaging in oncology: herpes zoster with axillary lymphadenopathy.

Accumulation of FDG in Central Venous Catheter Mimicking Lymph Node Metastasis in FDG-PET Imaging

Received 8/14/2006; revised 9/5/2006; accepted 9/6/2006. For correspondence or reprints contact: Wan-Yu Lin, M.D., Department of Nuclear Medicine, Taichung Veterans General Hospital, 160 Section 3, Taichung Harbor Road, Section 3, Taichung 407, Taiwan. Tel: (886)4-23741349, Fax: (886)423741348, E-mail: [email protected] We presented a 45-year-old woman who underwent FDG-PET scans due to ...

18F-FDG PET detection of lymph node metastases in medullary thyroid carcinoma.

UNLABELLED Postsurgically elevated or increasing serum calcitonin levels strongly suggest the presence of residual or recurrent medullary thyroid carcinoma (MTC). Several imaging modalities (sonography, MRI, CT, scintigraphy with different types of radiolabeled ligands, etc.) are routinely used in an attempt to localize tumorous tissue, but such efforts often fail. In the search for a more reli...