Prevalence of increased fdg pet/ct axillary lymph node uptake beyond 6 weeks after mrna covid-19 vaccination

Yael Eshet, Noam Tau, Yousef Alhoubani, Nayroz Kanana, Liran Domachevsky, Michal Eifer

Research output: Contribution to journalArticlepeer-review

Abstract

This study shows that avid axillary lymph node uptake at FDG PET/CT can be detected in more than a quarter of our patient population even beyond 6 weeks after the second dose of the mRNA-based COVID-19 vaccination. Compared with a previous study showing normalization of FDG uptake within 40 days of receiving an inactivated H1N1 influenza vaccine (6), we found uptake persistence even at 70 days. Physicians should be aware of this potential pitfall.

Original languageEnglish
Pages (from-to)E345-E347
JournalRadiology
Volume300
Issue number3
DOIs
StatePublished - Sep 2021

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