[Intracranial arteriovenous malformations in childhood. A revision of 25 cases (author's transl)].

Clinical features of A-V intracranial malformations during infancy, childhood and adolescence are reviewed on this series of 25 less-than-15-years-old patients. Great cirsoid malformations (2 cases) and aneurysms of the vein of Galen (2 cases) may cause diffuse brain-steal-ischaemia, hydrocephalus and congestive heart failure in early ages, event at birth. The clinical manifestations of brain angiomas rather begin from the fifth year of life. Little sized angiomas cause preferentially intracranial haemorrhagic attacks (17 of 21 cases in this series). Middle sized racemic angiomas cause focal seizures and/or focal neurologic signs. In 5 patients an intracranial bruit of a great diagnostic value was present. Combining brain radioisotopic studies, brain C.A.T. and angiography near 100% of intracranial A-V malformations can be diagnosed early after clinical suspicion.