STUDY PROTOCOL Open Access Recurrent differentiated th

Full list of author information is available at the end of the articlehistopathological features, to compare I PET/CT after rhTSH and after withdrawal of thyroid hormone, and to compare 124I and 131I dosimetry. Discussion: This study aims to evaluate the potential value of the combination of 124I and 18F-FDG PET/CT in the prevention of futile 131I therapies in patients with biochemically suspected recurrence of DTC. To our best knowledge no studies addressed this in a prospective cohort of patients. This is of great clinical importance as a futile 131I is a costly treatment associated with morbidity and therefore should be restricted to those likely to benefit from this treatment