Preferred Label : yin-yang sign;
Definition : A round mass with high attenuation in one half and low attenuation in the other in
contrast-enhanced CT scans. Also seen as swirling blood flow pattern within a pseudoaneurysm.
Typically suggests partially thrombosed aneurysm over other possible mass.;
Source : Radiology 2006; 238:1070-1071;
Origin ID : RID35710;
Associated condition(s)
A round mass with high attenuation in one half and low attenuation in the other in
contrast-enhanced CT scans. Also seen as swirling blood flow pattern within a pseudoaneurysm.
Typically suggests partially thrombosed aneurysm over other possible mass.
