Hypermetabolic axillary lymph nodes in PET-FDG post-vaccination against COVID-19, in cancer patients
DOI:
https://doi.org/10.53903/01212095.139Keywords:
Coronavirus infections, Positron-emission tomography, Abdominal neoplasms, VaccinationAbstract
Like malignant cells, inflammatory cells can intensely take up F18-fluorodeoxyglucose (FDG). The axillary lymph node inflammatory reaction has been increasingly and globally described after vaccination against COVID-19 with the Pfizer, Moderna and AstraZeneca vaccines, in cancer patients. We present two cases with a diagnosis of ovarian and breast cancer respectively, with a history of recent vaccination against COVID-19, in whom the PET/CT study present hypermetabolic axillary lymph nodes with FDG. Key findings for interpreting increased axillary lymph node uptake in cancer patients who have been vaccinated against this virus are described below.
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