Abstract
Pulmonary arteriovenous malformation (PAVM) is a congenietal malformation resulting in right to left shunt. In this study we reported a 26 year old male who was referred for evaluation of central cyanosis, exertional dyspnea and nasal bleed. Past history was significant for transient ischemic attack (TIA). Chest xray revealed a mass lesion on left side which was shown to be arterio-venous malformation on CT-thorax. The patient has undergone a successful percutaneous occlusion using a vascular plug.