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[Cerebral ischemic disorders in the young subject. The causes of ischemic disorders].

PROTEIN CAUSES: Although cardiogenic emboli, arterial dissection, and to a lesser extent, arteriosclerosis are the major underlying causes, clinicians should keep in mind the wide spectrum of possible etiologies. UNCOMMON CONDITIONS: Rigorous history taking (toxic risk, family history), systematic search for skin or skeletal anomalies, and an ophthalmologic examination can help orient the diagnosis and lead to the appropriate complementary explorations. DIAGNOSTIC STRATEGY: The need for a precise etiologic diagnosis is obvious as many vascular conditions are amenable to specific treatments or require particular monitoring or preventive measures. A family survey many be indicated.