tokens: Cerebral infarction occurred in 10 patients ( 22 %), intracerebral hemorrhage in 22 ( 49 %), and subarachnoid hemorrhage in 13 ( 29 %). These data indicate that ( 1 ) the apparent incidence of stroke related to cocaine use is increasing ;( 2 ) cocaine - associated stroke occurs primarily in young adults ;( 3 ) stroke may follow any route of cocaine administration ;( 4 ) stroke after cocaine use is frequently associated with intracranial aneurysms and arteriovenous malformations ; and ( 5 ) in cocaine - associated stroke , the frequency of intracranial hemorrhage exceeds that of cerebral infarction