Pulmonary arteriovenous malformation with spontaneous haemothorax

Pulmonary arteriovenous malformation (PAVM) is a very rare congenital vascular abnormality of the lung. PAVM are usually asymptomatic in presentation. The occurrence of Pulmonary haemorrhage in patients with Pulmonary arterio -venous malformation is very rare. Pulmonary haemorrhage is a very lethal complication of Pulmonary arteriovenous malformation and it should be treated aggressively. Depending upon the location, either massive haemoptysis or haemothorax will occur. We report a case of 36 year old female who was evaluated for spontaneous massive haemothorax on the right side and detected to have large PAVM. She was successfully treated with right lower lobectomy. © 2011 Indian Association of Cardiovascular-Thoracic Surgeons.