Thyroid carcinoma is uncommon but accounts for roughly 95% of all cancers of the endocrine system (1). The “well-differentiated” thyroid tumors include the papillary, follicular, and Hurthle cell subtypes. Although the management of these tumor types generally is similar, important diagnostic and clinical differences do exist (2). We present a case of follicular thyroid carcinoma with spinal metastasis, illustrate its imaging features on CT and MR imaging with histologic correlations, and discuss how vertebral osseous metastasis may influence clinical management of patients with differentiated thyroid cancer.
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