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Nodular rim type (type III) in a 51-year-old female diagnosed with hemangioma. A: A mixed-echo lesion with a relatively clear margin was evident in the right liver lobe; B: CDFI showed a sporadic short strip blood flow signal around the edge of this lesion; C: SMI showed a nodular rim-distributed microvascular structure; D: Contrast-enhanced ultrasound showed nodular rim enhancement of the lesion in the arterial phase. SMI: Superb microvascular imaging.
