Loss of insular ribbon sign and disappearing basal ganglia sign

Case contributed by Hidayatullah Hamidi
Diagnosis certain

Presentation

Right side acute weakness for the last 12 hours.

Patient Data

Age: 50 years
Gender: Female

Ill-defined hypodensity is seen involving the left insular cortex with loss of grey and white matter interface (loss of insular ribbon sign).

Loss of delineation of the basal ganglia is noted (disappearing basal ganglia sign).

No intracranial hemorrhage.

Case Discussion

Loss of insular ribbon sign and disappearing basal ganglia sign are computed tomography features of middle cerebral artery acute ischemic infarct seen on plain CT.

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