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Axial non-contrast
Hyperdense MCA sign
Loss of insular ribbon sign
Disappearing basal ganglia sign
CT
Axial non-contrast
Hyperdense MCA sign
Loss of insular ribbon sign
Disappearing basal ganglia sign
The left middle cerebral artery appears hyperdense. There is an ill-defined hypodense region noted involving the left insular cortex with loss of grey and white matter interface. There loss of delineation of the basal ganglia suggestive of disappearing basal ganglia sign.