Endovascular coil embolization of a costocervical trunk pseudoaneurysm after bullectomy with pleural abrasion.

Transarterial embolization (TAE) is less invasive than surgery for the treatment of pseudoaneurysms. Costocervical trunk (CCT) pseudoaneurysms are extremely rare. We herein report an unusual case of a 45-year-old man with a CCT pseudoaneurysm caused by a bullectomy with pleural abrasion, which had been performed to manage a spontaneous pneumothorax. The patient presented with chronic chest pain and successfully underwent TAE with a metallic coil. The chest pain completely disappeared 2 weeks after the TAE, and follow-up computed tomography showed that the pseudoaneurysm had almost completely disappeared 9 months after the TAE.