Study of PET Imaging With 18F-TFB in Patients With Thyroid Cancer

Inclusion Criteria: * Patients must have histologically or cytologically confirmed thyroid carcinoma of follicular origin (including papillary and its respective variants). * Patients should have tumors that are radiographically evident on PET, ultrasound, CT or MRI * Age ≥ 18 years. * ECOG performance status ≤ 2 (or Karnofsky ≥60%). * Patients must have normal organ and bone marrow function as defined below: * Absolute neutrophil count (ANC) \> 1.5x10\^9/L * Hemoglobin ≥ 9 g/dL * Platelets ≥ 100 x 10\^9/L * Albumin ≥ 2.5 g/dL * Total bilirubin ≤ 1.5x institutional ULN * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2x institutional ULN unless it is related to the primary disease * Creatinine ≤ 1.5 mg/dL OR calculated creatinine clearance (Cockcroft-Gault formula) ≥ 50 mL/min OR 24-hour urine creatinine clearance ≥ 50 mL/min * Negative pregnancy test within 7 days prior to starting the study in premenopausal women. Women of non-childbearing potential may be included without pregnancy test if they are either surgically sterile or have been postmenopausal for ≥ 1 year. * Fertile men and women must use an effective method of contraception during treatment and for at least 6 months after completion of treatment as directed by their physician. Effective methods of contraception are defined as those, which result in a low failure rate (i.e., less than 1% per year) when used consistently and correctly (for example implants, injectables, combin…