Through cerebral angiography, the sign has been demonstrated to correspond to embolic or atherosclerotic occlusion of an<unk> . Specifically, the hyperdensity is thought to be due to calcification or hemorrhage associated with an atherosclerotic plaque.
Dense artery sign
Puddle sign
Bing's sign
Hot quadrate sign
Claybrook sign
Matchbox sign
Limbus sign
Terry Thomas sign