Basal Ganglia Hemorrhage

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Basal Ganglia Hemorrhage

Extravasation of blood into a basal ganglia nucleus (e.g., caudate, globus pallidus, amygdala, putamen, and claustrum). Clinical manifestations may include acute hemiparesis, movement disorders, headache and/or alterations of consciousness. Hypertension and vascular malformations are relatively common causes of this condition. Pathologically, these hemorrhages are associated with lipohyalinosis of small blood vessels and Charcot-Bouchard microaneurysm formation. (Adams et al., Principles of Neurology, 6th ed, p836)