TG and thyroid gland papillary carcinoma: In a study which investigates the value of pre-ablation stimulated Tg in predicting DM of papillary thyroid cancer (15), it was reported that area under the ROC curve for Tg levels was 0.893 and the cut-off value of Tg was 52.75 μg/L with a sensitivity of 78.90% and specificity of 91.70%.