Fig. 4. Graph shows results of ROC analysis for differentiating malignant and benign thyroid incidentalomas by TLG 2.5, TLG 3.0, TLG 3.5, and TLG 4.0.

AUC were 0.827, 0.851, 0.867, and 0.895, respectively. Threshold TLG 4.0 of 2.475 had 81.3% sensitivity and 94.3% specificity for identifying malignant thyroid incidentalomas. TLG = total lesion glycolysis