[Lung involvement in Osler's disease and its cerebral complications]

About 50% of patients with Osler's disease also have arteriovenous lung malformations. The wall-insufficiency mural inadequacy of the malformed vessels is due to the secondary infectious cerebral and meningeal complications which frequently occur in the disease. If a brain abscess is diagnosed, one has first to take into consideration an arteriovenous malformation of the lungs as a possible source of the infection.