Preferred Label : twisted tape sign;
Definition : Only one of two lumina is opacified on an aortogram, and lumen is constricted at different
levels in different planes. Suggests dissecting aortic aneurysm; dissection spirals
around true lumen and compresses it.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID35671;
Associated condition(s)
Only one of two lumina is opacified on an aortogram, and lumen is constricted at different
levels in different planes. Suggests dissecting aortic aneurysm; dissection spirals
around true lumen and compresses it.