Fig. 2From: Malignancy risk stratification of thyroid nodules smaller than 10 mm with ACR-TIRADS, K-TIRADS, and ATA-2015 guidelines: a prospective studyReceiver operating characteristic (ROC) curve of different ultrasound classification systems (category 5; category 4 or 5) for predicting malignancy of thyroid nodules smaller than 10 mmBack to article page