Caption: Sagittal view of the liver at the porta hepatis.
Description: A hypoechoic rounded structure is seen at the level of the porta hepatis.
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Caption: Oblique color Doppler scan.
Description: The structure partially fills with color and is seen in very close proximity to the hepatic artery. The portal vein is seen adjacent to the hepatic artery [rounded red structure].
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Caption: Color Doppler image at the porta hepatis.
Description: The rounded hypoechoic structure shows bidirectional and turbulent color flow. It was noted to arise from a branch of the hepatic artery. These features are consistent with that of a pseudoaneurysm.
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Caption: Spectral analysis of the periphery of the mass.
Description: Color Doppler shows a yin-yang appearance to the flow within the pseudoaneurysm, and spectral analysis documents flow not typical of the normal hepatic artery.
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Caption: Spectral analysis of the adjacent hepatic artery.
Description: A normal arterial waveform is noted.
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