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Upper left, conventional ultrasound shows an isoechoic mass (calipers) in the gallbladder; Upper right, pulsatile arterial blood flow is detected in the lesion; Middle left, the lesion (arrow) shows linear blood vessels during the arterial phase; Middle right, the lesion (arrow) shows hyper-enhancement during the arterial phase; Lower left, the lesion (arrow) shows iso-enhancement during the venous phase.
