The yin-yang sign is a radiological sign described in both true and false aneurysms on various imaging modalities.
Indicates bidirectional flow due to swirling of blood within the aneurysm or the pseudoaneurysm , which may resemble its namesake.
Contrast enhanced CT
The patent portion of the lumen of the aneurysmal vessel demonstrates increased attenuation, due to contrast enhancement whereas a part of the lumen shows reduced attenuation due to a mural thrombus.
Synonyms & Alternative Spellings
|Synonyms or Alternative Spelling||Include in Listings?|
|The Yin and Yang sign||✗|
|THe ying-yang sign||✗|