Case contributed by Dr Omar Bashir

The lumen of the pseudoaneurysm is connected to the parent vessel through a tract (neck) of variable length and diameter. The arrows in the diagram denote the direction of the blood flow. The swirling pattern of flow within the pseudoaneurysm lumen creates the characteristic yin-yang pattern on color Doppler.

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Case information

rID: 17030
Published: 11th Mar 2012
Last edited: 13th Aug 2019
System: Vascular
Inclusion in quiz mode: Excluded

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