Type II right-sided aortic arch with aberrant left subclavian artery

Case contributed by Dr Ammar Haouimi

Presentation

Chest pain with intermittent dysphagia

Patient Data

Age: 60 years
Gender: Female

The frontal view shows a prominent right aortic arch with a slight tracheal shift to the left.

The lungs are clear.

The heart size is normal.

The MRI sequences demonstrate a right-sided aortic arch with aberrant left subclavian artery associated with Kommerell's diverticulum. The aortic arch crosses the midline posterior to the trachea and esophagus which are displaced anteriorly with significant compression of the esophagus. 

The barium swallow reveals a smooth regular extrinsic compression of the esophagus.

Case Discussion

Radiologic and MRI features of a right-sided aortic arch with aberrant left subclavian artery associated with Kommerell's diverticulum. Together these findings constitute a type II right-sided aortic arch. It can rarely cause esophageal and/or tracheal compression (as in this case).

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Case information

rID: 73790
Published: 27th Jan 2020
Last edited: 27th May 2020
System: Vascular
Inclusion in quiz mode: Included
Institution: Aurès Medical Imaging Center - Batna Algeria