Preferred Label : comet sign;
Definition : Hyperattenuating mass with tail of soft tissue attenuation resembles a comet. Suggests
phlebolith; tail is noncalcified portion of vein. Differentiates phlebolith from ureteral
calculus.;
Source : RadioGraphics 2004;24:S247-S280;
Origin ID : RID35102;
Associated condition(s)
Hyperattenuating mass with tail of soft tissue attenuation resembles a comet. Suggests
phlebolith; tail is noncalcified portion of vein. Differentiates phlebolith from ureteral
calculus.