Fig. 2
From: Ultrasound microflow patterns help in distinguishing malignant from benign thyroid nodules
Ultrasound images of a papillary thyroid carcinoma of classic variant in a 42 female patient. a The lesion presented as a hypoechoic solid nodule with irregular margin on greyscale. b CDFI showed scattered dot- and rod-like flow signals at the margin of the nodule. c CSMI showed a crab claw-like pattern. d. MSMI showed a crab claw-like pattern