[A case of cerebral giant-cell angiitis associated with cerebral amyloid angiopathy. Favorable evolution with corticosteroid therapy].

We report a biopsy proven case of cerebral giant cell angiitis associated with cerebral amyloid angiopathy. Clinical history and radiological lesions were rapidly progressive. The patient recovered with corticosteroid treatment. The pathogenesis relationship between angiitis and amyloid angiopathy are discussed.