Abstract
Thyroid tuberculosis is a rare condition that is difficult to diagnose and may be suspected of being a malignant tumor. We report a case of thyroid tuberculosis in a 54-year-old woman that mimicked thyroid cancer on ultrasound, with a 18 F-FAPI PET/CT scan showing intense 18 F-FAPI uptake in the thyroid lobe, right neck lymph node, and celiac lymph nodes.