Dysphagia lusoria is due to -

Dysphagia Lusoria is a disorder of swallowing caused due to vascular anomalies Causes of Dysphagia Lusoria A right aortic arch A double aortic arch A vascular constricting ring formed by a PDA or a ligamentum arteriosum and the pulmonary artery or aortic arch. An abnormal right subclavian artery. (Arteria lusoria) An abnormal innominate artery. Diagnosis is made by a lipoidal swallow or by arteriography.