Can J Ophthalmol
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Can J Ophthalmol
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Giant cell arteritis (GCA) is the most common primary vasculitis affecting the elderly population. GCA preferentially involves the extracranial branches of the carotid artery; intracranial vasculitis is thought to be a rare occurrence. This study determined the prevalence of intracranial vasculitis in a large series of patients evaluated for GCA and describes the clinical presentation of such cases. ⋯ Although uncommon, clinicians should be aware that GCA can directly involve the intracranial circulation with both the anterior and posterior circulation affected in most of our cases.