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Despite all efforts, intracranial hemorrhage still has a dismal prognosis, with up to 61% mortality after 2 years.1 Several authors have concluded that intracranial hemorrhage due to a brain arteriovenous malformation (AVM) has a better clinical outcome.1–3 Only one study specifically addressed this issue and used a relatively small sample, comparing the outcome of 90 patients with a ruptured AVM from the Scottish Intracranial Vascular Malformation Study to the outcome of 60 patients with a spontaneous intracranial bleeding included in the Oxford Vascular Study.1 Those investigators found better outcomes after AVM-related hemorrhages independently of patient age and other known predictors of intracranial hemorrhage outcome. This difference in outcome warrants a thorough radiologic investigation in every patient presenting with an intracranial hemorrhage.
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