A Case of Idiopathic Pulmonary Artery Aneurysm Treated by Transcatheter Arterial Embolization

Abstract

Idiopathic pulmonary artery aneurysm is extremely rare and many aspects of its natural course remain to be elucidated. However, treatment is recommended as soon as possible after diagnosis, regardless of aneurysm etiology, size, or symptomatic status as rupture is potentially fatal. We encountered a woman in 60s in whom transcatheter arterial embolization (TAE) was identified during a routine health check 14 years previously. The aneurysm was 15×12 mm in size, with one feeding and two draining arteries. TAE of the feeding and draining arteries was completed using metallic coils with no apparent complications. TAE is less invasive and should thus be feasible of treatment options for idiopathic pulmonary artery aneurysm.