[Arteriovenous malformations in Rendu-Osler disease: value of systematic screening].

Rendu-Osler disease (hereditary hemorrhagic telangiectasia) is a rare disease of genetic origin characterized by epistaxis, cutaneous and mucous telangiectases, and visceral arteriovenous malformations. Pulmonary arteriovenous malformations are a cause of paradoxical embolism leading to cerebral abscesses and ischemic strokes. Screening for pulmonary vascular manifestations by cardiac contrast echocardiography and imaging permits early vaso-occlusion of arteriovenous malformations.