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COVID-19 vaccination may cause FDG uptake beyond axillary area

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Fleury, Vincent | Maucherat, Bruno | Rusu, Daniela | Dumont, Frédéric | Rousseau, Caroline

Edité par CCSD ; Springer -

International audience. Background: The vaccination immune response may induce false-positive 18F-FDG PET/CT uptake.Case presentation: An extended supraclavicular lymph nodal activation after coronavirus disease 2019 (COVID-19) vaccination revealed on 18F-FDG PET/CT mimics a Virchow nodule in a patient with medical history of well-differentiated appendicular adenocarcinoma.Conclusion: This case highlights a nodal activation beyond axillary area and the importance of documenting vaccination history at the time of scanning to avoid false-positive results.

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