Surgical Repair of Idiopathic Mid-Forearm Radial Artery Aneurysm Using a Reversed Greater Saphenous Vein Interposition Graft.

Idiopathic, non-traumatic, radial artery aneurysms are rare in medical literature. This report presents the case of a 56-year-old man who was incidentally found to have a 1.01 cm × 1.31 cm left radial artery aneurysm during a carpal tunnel workup. The patient had no other aneurysms, nor any known predisposing diseases that could explain his condition. We proceeded with surgical intervention to prevent future complications. We describe the use of a greater saphenous vein interposition graft for the repair of an idiopathic mid-forearm radial artery aneurysm. The patient had an uncomplicated recovery course following repair.