Axillary node reactivity after mRNA vaccine ‘can mimic malignancy’
Ipsilateral axillary lymph node reactivity seen in one in four patients after the IM administration of a COVID-19 mRNA vaccine may cause unnecessary concern for cancer patients, a small study suggests.
Researchers from Yale School of Medicine examined 18F-fluorodeoxyglucose PET and CT scans of 68 patients who had had at least one vaccine dose of the Moderna or Pfizer-BioNTech COVID-19 vaccines.