Fig. 4From: Contrast-enhanced ultrasound findings of adult renal cell carcinoma associated with Xp11.2 translocation/TFE3 gene fusion: comparison with clear cell renal cell carcinoma and papillary renal cell carcinomaA 46-year-old man with a 4.5-cm diameter pRCC. a Conventional US showed an isoechoic mass in the upper polar pole of the left kidney (arrows). b CDFI showed the tumour lack of blood flow signals (arrows). c The tumour enhanced slower than the renal cortex at the initial enhancement of CEUS imaging (arrows). d The tumour showed homogenous hypoenhancement at the peak enhancement of CEUS imaging (arrows). e The tumour showed fast wash-out at the medullary phase of CEUS imaging (arrows)Back to article page