{Reference Type}: Journal Article {Title}: Follicular Thyroid Carcinoma with Unusual Mandible Metastasis. {Author}: Tayyar MNA;Uyanik E;Babacan GB;Sahin MC;Kisbet T; {Journal}: Indian J Nucl Med {Volume}: 39 {Issue}: 2 {Year}: 2024 Mar-Apr 暂无{DOI}: 10.4103/ijnm.ijnm_6_24 {Abstract}: Follicular thyroid cancer is the second-most common type of thyroid cancer after papillary thyroid cancer. Metastases to the mandible and maxillofacial region are rare. Our study presents a 55-year-old patient who underwent total thyroidectomy for follicular thyroid cancer and subsequent radioactive iodine therapy. Sixteen years after diagnosis, elevated thyroglobulin levels suggested disease recurrence. Using advanced imaging techniques - Fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography scan, bone scintigraphy, and posttreatment I-131 scan-an unexpected metastatic site was identified: the left mandibular condyle. A biopsy confirmed the presence of metastatic follicular thyroid cancer.