Post-traumatic thoracic arteriovenous fistulas.

Post-traumatic arteriovenous fistulas (AVF) between vascular structures in the thorax rarely occur. We present an unusual case of the delayed diagnosis of two post-traumatic thoracic AVF in a 70-year-old male. He had abnormal communications between an intercostal artery and an intercostal vein as well as an intercostal artery and a pulmonary vein. He has remained asymptomatic and has not developed a complication from these abnormal vascular structures in a three-year follow up.