COVID-19 vaccination may cause FDG uptake beyond axillary area
Résumé
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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