[Familial clustering of cerebrovascular anomalies].

The authors report mother and her daughter affected with intracranial aneurysm and arteriovenous malformation. The anomalies of cerebral vascular system, as intracranial aneurysms, cavernous hemangiomas and arteriovenous malformations are considered to originate from congenital maldevelopments of the brain vessels. The importance of the early diagnosis in the familial cases and the prevention due to surgery and genetic counselling are stressed.