[Moyamoya disease associated with kidney angiodysplasia in a child].

Introduction: Moyamoya disease is a progressive, chronic occlusive vascular disease of the circle of Willis arteries leading to the development of collateral circulation to compensate the occlusion.

Case Report: An 11-year-old girl presented an abrupt loss of consciousness and a right-sided motor deficit. Clinical examination found hypertension with 220/120mmHg arterial blood pressure.