# A rare case of bilateral subclavian artery agenesis

## TL;DR

This paper reports a rare case of missing subclavian arteries and an aneurysm, highlighting an unusual vascular condition and its treatment.

## Contribution

The novelty lies in the first reported case of bilateral subclavian artery agenesis with an associated aneurysm.

## Key findings

- Bilateral subclavian artery agenesis was identified incidentally in an asymptomatic patient.
- A left subclavian artery aneurysm was successfully repaired via vertebral transposition and ligation.
- The patient was asymptomatic but underwent preventive treatment to avoid future complications.

## Abstract

Arterial agenesis is a rare condition and has been reported to affect the internal carotid artery, common carotid artery, and pulmonary artery. However, to the best of our knowledge, it has not yet been reported to affect the subclavian arteries. We present a case of asymptomatic bilateral subclavian artery agenesis and left subclavian artery aneurysm. This patient's abnormal vasculature was found incidentally. Despite being asymptomatic, repair of the aneurysm via vertebral transposition and ligation of the subclavian artery was performed to prevent eventual thrombosis, emboli, and stroke.