Pulmonary arteriovenous malformation is an abnormal communication between artery and a vein, causing clinical manifestations, such as chronic hypoxemia embolic events. Arteriovenous malformations were treated surgically, with significant rate of complications. In the 1970 ́s, first percutaneous catheter embolization was performed coils. We describe three cases in which techniques effective to pr...

A 5-month-old infant, referred to our institution for percutaneous arterial duct (AD) embolization, showed multiple huge pulmonary arteriovenous malformations (PAVMs) associated with a small AD and several tiny systemic-to-pulmonary collaterals. This anatomic arrangement was a possible cause of lack of cyanosis and disproportionately higher hemodynamic relevance of the ductal shunt. The PAVMs b...

A 37-year-old man was seen for recurrent pulmonary embolism in 2007. He had previously experienced pulmonary embolism in 2001 and 2006. As a result, he developed significant pulmonary hypertension that manifested as shortness of breath on exertion. On physical examination, a large, rubbery, nonpulsatile mass of the right axilla (Figure 1) was noted. He was treated with therapeutic oral anticoag...

BACKGROUND Paradoxical embolism due to pulmonary arteriovenous malformations is the main mechanism of brain infarction in patients with hereditary hemorrhagic telangiectasia. International Guidelines have recently been published to clarify the performance of screening tests and the effectiveness of treatment for pulmonary arteriovenous malformations. CASE PRESENTATION We present two cases of ...

Klippel-Trenaunay-Weber syndrome (KTWS) is a congenital disorder characterized by cutaneous capillary malformations, venous-lymphatic anomalies, hypertrophy of soft tissue and bone in the area of increased vascularity and arteriovenous fistulas with shunting. In this article we report the case of a 25 year old man with KTWS who had multiple surgical operations because of arteriovenous malformat...