Axillary Lymph Nodes Hypermetabolism After BNT162b2 mRNA COVID-19 Vaccination in Cancer Patients Undergoing 18F-FDG PET-CT: A Cohort Study
Recognition of the pattern of FDG uptake in hypermetabolic axillary lymph nodes (HALs) to prevent unnecessary biopsies or costly biopsies. The study involved 650 consecutive cancer patients with recent BNT162b2 mRNA COVID-19 vaccination. Researchers found a cluster pattern of hypermetabolic ipsilateral l small axillary lymph nodes is common after the second injection, but there was no difference between doses 1, 2, or 3.
