Fig. 3From: Malignancy risk stratification of thyroid nodules smaller than 10 mm with ACR-TIRADS, K-TIRADS, and ATA-2015 guidelines: a prospective studyThe ultrasound-guided fine-needle aspiration from an isoechoic nodule with incomplete peripheral echogenic foci and a diameter of 8 mm (ACR-TIRADS-4, ATA-2015-Low suspicion, K-TIRADS-3), which was proved by cytology to be a nodular goiterBack to article page