[Arteriovenous malformations and its complex management].

Congenital arteriovenous malformations (AVM) represent a rare clinical entity. They are present at birth but can remain silent for many years. Due to their potential severity and their complex and specific management, the general practitioner should know when to suspect the presence of an AVM. Anatomic and hemodynamic characteristics of these malformations are well analysed by Doppler ultrasound, which is the first-line diagnostic test. MRI is often used in conjunction with ultrasound to better define the location and extension to neighbouring tissues and organs. Embolisation should be restricted to AVM associated with major functional disability, local complications or systemic cardiac complications in case of high flow volume life-threatening lesions.