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Erschienen in:
01.05.2010 | Nuclear Medicine
FDG uptake in axillary lymph nodes after vaccination against pandemic (H1N1)
Erschienen in: European Radiology | Ausgabe 5/2010
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Objective
To alert the imaging community to potential false positive findings related to current immunization programmes against H1N1 influenza virus.
Methods
We reviewed 10 patients referred for positron emission tomography/computed tomography (PET/CT) who had undergone recent vaccination.
Results
All studies showed 18F-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.
Conclusion
This potential pitfall in PET/CT should be borne in mind during current vaccination programmes.