Significance of Intracranial Aneurysms Associated with Moyamoya Disease (Part I): Differences between Intracranial Aneurysms Associated with Moyamoya Disease and Usual Saccular Aneurysms —Review of the Literature

It is the purpose of this paper to discuss differences between intracranial aneurysms associated with Moyamoya disease and usual saccular aneurysms. Thirty six published cases of bilateral Moyamoya disease with 42 intracranial aneurysms, including a case of the authors, were reviewed. Ten cases of unilateral Moyamoya disease with 14 intracranial aneurysms and 5 cases of unidentified Moyamoya disease with 7 intracranial aneurysms, in which it remained unknown whether the Moyamoya vessel was unilateral or bilateral, are also being referred to. The predominant symptoms of the 36 cases were classified the hemorrhagic type (79%), ischemic type (12%), and others (9%). Incidence of the hemorrhagic type was higher than in the general Moyamoya disease (P