Arterial agenesis is a rare condition affecting various arteries, including the internal and common carotid arteries, as well as the pulmonary artery, but not previously reported for subclavian arteries.
A case of a patient with no symptoms was discovered to have bilateral subclavian artery agenesis and an aneurysm in the left subclavian artery.
Though asymptomatic, the aneurysm was surgically repaired to avoid risks of thrombosis, embolism, and stroke.