title: Cerebral amyloid angiopathy causing intracranial hemorrhage.
abstract: Ten cases of sporadic cerebral amyloid angiopathy (CAA) were seen as intracranial hemorrhage. CAA was seen as a stroke or catastrophic intracranial hemorrhage in all cases. CAA complicated by intracranial hemorrhage carried a high mortality; 9 of 10 patients died in spite of aggressive medical or surgical treatment. Senile dementia of Alzheimer's type was an associated finding in only 1 patient. Computed tomographic scanning in 4 patients initially was not diagnostic for hemorrhage. Lambda chains and amyloid P protein were demonstrated in the areas of amyloid angiopathy immunocytochemically. The pathogenesis of hemorrhage in CAA could be either increased fragility of amyloid-laden blood vessels or rupture of microaneurysms. Surgical treatment of intracranial hemorrhage in CAA should therefore be undertaken with caution.
mesh_terms: D000368:Aged; D000682:Amyloid / Q000378:metabolism; D000686:Amyloidosis / Q000150:complications* / Q000473:pathology; D001921:Brain / Q000473:pathology; D002539:Cerebral Arterial Diseases / Q000150:complications* / Q000473:pathology; D002536:Cerebral Arteries / Q000473:pathology; D002543:Cerebral Hemorrhage / Q000473:pathology*; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D007136:Immunoglobulins / Q000378:metabolism; D002532:Intracranial Aneurysm / Q000473:pathology; D008297:Male; D008875:Middle Aged; D000683:Serum Amyloid P-Component
chemical_list: D000682:Amyloid; D007136:Immunoglobulins; D000683:Serum Amyloid P-Component