Journal
EUROPEAN RADIOLOGY
Volume 20, Issue 5, Pages 1251-1253Publisher
SPRINGER
DOI: 10.1007/s00330-010-1719-5
Keywords
PET/CT; pitfall; Vaccination; H1N1 influenza
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To alert the imaging community to potential false positive findings related to current immunization programmes against H1N1 influenza virus. We reviewed 10 patients referred for positron emission tomography/computed tomography (PET/CT) who had undergone recent vaccination. All studies showed (18)F-fluorodeoxyglucose (FDG) uptake in the draining axillary lymph nodes close to the vaccination site, while low-dose CT revealed lymph nodes ranged between 0.5 cm and 1.2 cm at the same site. This potential pitfall in PET/CT should be borne in mind during current vaccination programmes.
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