Fig. 2

ROC curve analysis to establish a cutoff criterion for the recurrence of hyperparathyroidism following alcohol ablation, based on the volume and maximum diameter of the adenoma. A threshold of > 425.5 mm³ for adenoma volume and > 13.5 mm for its greatest diameter demonstrated a sensitivity of 75% and specificity of 69% for recurrence in the alcohol ablation group (AUC = 0.81 and 0.84, respectively)