“…The most accepted prognostic factors are age, histological variant, initial extension of the disease, and size of the primary tumour. However, a significant percentage of patients are not correctly classified with these variables, indicating the necessity of better early markers of cancer risk assessment to obtain a fine-tuned prognostic characterization [32] . Furthermore, the currently used clinical scoring systems focus on disease-specific mortality, when, in fact, a system to predict recurrence is most relevant to the vast majority of thyroid cancer patients, since they will have low-risk disease.…”