COVID-19 vaccine related hypermetabolic lymph nodes on PET/CT: Implications of inflammatory findings in cancer imaging.

We observed several patients presenting 2-[F]FDG uptake in the reactive axillary lymph node at PET/CT imaging, ipsilateral to the site of the COVID-19 vaccine injection. Analog finding was documented at [F]Choline PET/CT. The aim of our study was to describe this source of false positive cases.

I Uptake in Bronchiectasis Detected by Single Photon Emission Computed Tomography/Computed Tomography during Follow-up of Thyroid Cancer.

During follow-up of thyroid cancer, I whole-body scan showed intense tracer uptake in the right hemithorax of a patient previously submitted to thyroidectomy and radioiodine therapy for differentiated thyroid cancer. Thyroglobulin was undetectable at the time of the scan. Single-photon emission computed tomography/computed tomography (SPECT/CT) of the thorax correctly identified widespread bronchiectasis I-avid in the middle lobe of the right lung.