Aberrant right subclavian artery
The patient came complaining of chest pain on exertion.
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The right subclavian artery arises distal to the left subclavian artery and courses posterior to the trachea and esophagus.
Patients with aberrant right subclavian artery are almost asymptomatic and usually seen incidentally, but some patients could come with dysphagia ( dysphagia lusoria).
In our case, the aberrant right subclavian artery passes behind the esophagus and trachea which account about 80% in this type of vascular anomaly.