Pulmonary arteriovenous malformation: a rare anterior mediastinal mass.

Pulmonary arteriovenous malformations are rare pulmonary vascular lesions which are associated with Osler Weber Rendu syndrome (hereditary haemorrhagic telangectasia). They act as right-to-left shunts and have cardiovascular and embolic complications. We present a patient with an apparent anterior mediastinal mass secondary to a pulmonary arteriovenous malformations which was successfully treated percutaneously.