EURORAD ESR

Case 826

Right aortic arch with aberrant left subclavian artery

Author(s)
H. Aniq, JA. Holemans
 
Patient
male, 46 year(s)
 
 
  • Figure 1
    PA chest radiograph

    Smooth widening of the superior mediastinum

     
    Area of Interest: unknown; Imaging Technique: PA chest radiograph;
     
     
  • Figure 2
    Axial contrast enhanced thoracic CT
     

    Four aortic arch branches are visible, two on the right and two on the left.

     
    Area of Interest: unknown; Imaging Technique: Axial contrast enhanced thoracic CT;

    The right and left common carotid arteries lie anterior to the right and left subclavian arteries respectively.

     
    Area of Interest: unknown; Imaging Technique: Axial contrast enhanced thoracic CT;

    Note the left common carotid artery anterior to the trachea.

     
    Area of Interest: unknown; Imaging Technique: Axial contrast enhanced thoracic CT;

    The left common carotid artery remains anterior to the trachea and the left subclavian is passing behind the oesophagus.

     
    Area of Interest: unknown; Imaging Technique: Axial contrast enhanced thoracic CT;

    The aortic arch is right sided and the left common carotid passes anterior to the trachea from the right side.

     
    Area of Interest: unknown; Imaging Technique: Axial contrast enhanced thoracic CT;

    The left common carotid origin is from the right sided arch. The origin of the left subclavian is from the descending aorta and is bulbous (diverticulum of Kommerell).

     
    Area of Interest: unknown; Imaging Technique: Axial contrast enhanced thoracic CT;
     
     
  • Figure 3
    PA Surface shaded 3D CT angiogram

    There is a rignt sided aortic arch. There are four arch branches. The first branch swings from the right to the left neck (left common carotid). The origin of the last branch (left subclavian) is aberrant.

     
    Area of Interest: unknown; Imaging Technique: PA Surface shaded 3D CT angiogram;
     
     
Smooth widening of the superior mediastinum
 
Four aortic arch branches are visible, two on the right and two on the left.
 
The right and left common carotid arteries lie anterior to the right and left subclavian arteries respectively.
 
Note the left common carotid artery anterior to the trachea.
 
The left common carotid artery remains anterior to the trachea and the left subclavian is passing behind the oesophagus.
 
The aortic arch is right sided and the left common carotid passes anterior to the trachea from the right side.
 
The left common carotid origin is from the right sided arch. The origin of the left subclavian is from the descending aorta and is bulbous (diverticulum of Kommerell).
 
There is a rignt sided aortic arch. There are four arch branches. The first branch swings from the right to the left neck (left common carotid). The origin of the last branch (left subclavian) is aberrant.
 
 
 
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