Transcatheter embolization for idiopathic peripheral pulmonary arterial aneurysm: A case report.

The natural history of idiopathic peripheral pulmonary arterial aneurysms (PAAs) is unclear; however, they can cause sudden death by rupture. Our case illustrates the utility and low invasiveness of transcatheter embolization using an AMPLATZER™ Vascular Plug 4 and hydrogel-coated metallic coils in patients with idiopathic peripheral PAAs.