Ruptured idiopathic pulmonary artery aneurysm: unusual case of hemothorax treated by selective embolization.

Aneurysm of the peripheral pulmonary arteries is rare. Rupture of pulmonary artery aneurysms manifesting as recurrent hemoptysis with exsanguination is well recognized. We report the case of a young woman who presented with massive hemothorax and shock at the sixth month of pregnancy due to a ruptured lingular artery aneurysm. She was treated with selective coil embolization of the lingular artery to achieve hemostasis. Subsequently, clot evacuation from the pleural space was done. This case is reported for its unsuspected presentation, rarity and to highlight the use of catheter coil embolization to achieve control of bleeding and exclusion of the aneurysm from the pulmonary circulation.