Charcot-Bouchard aneurysm vs. Lacunar stroke

Both Charcot-Bouchard microaneurysms and lacunar infarcts occur as a result of hypertension: Charcot-Bouchard microaneurysms(hemorrhagic stroke): Chronic hypertension --> Formation of aneurysms of lenticulostriate vessels--> Rupture of aneurysms --> Intracerebral hemorrhage(most commonly located in basal ganglia and thalamus)-->increased intracranial pressure: Headache, altered mental status, seizures, brain herniations, coma, and death. Lacunar infarcts(ischemic stroke): Chronic hypertension--> Arteriolar sclerosis, hyaline formation--> Occlusion of sclerotic artery--> A small sized infarct occurs(most commonly located in basal ganglia and brainstem)-->lesions of contralateral STN-->hemiballismus