EURORAD ESR

Case 12569

Pseudoaneurysm of the internal carotid artery: a late complication of otomastoiditis

Author(s)
Arribas García, J; Blanco Cabellos, JA; Ossaba Vélez, S

Hospital Infanta Cristina. (Parla, Madrid).
Unidad Central de Radiodiagnóstico (UCR).
 
Patient
female, 70 year(s)
 
 
  • Figure 1
    Contrast enhanced axial CT
     

    Bone window. Occupation of the right middle ear and mastoid cells, erosive lysis and ill-defined irregular edges of the petrous apex suggesting right petrous apicitis.

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT; Procedure: eLearning; Special Focus: Aneurysms;

    Inflammatory changes in right deep parapharyngeal space

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT; Procedure: eLearning; Special Focus: Abscess;

    Inflammatory changes surrounding right ICA with spasm and decrease in diameter of the artery

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT; Procedure: eLearning; Special Focus: Abscess; Aneurysms;
     
     
  • Figure 2
    Contrast enhanced axial CT postoperative
     

    Postoperative changes after right open mastoidectomy surgery

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT; Procedure: eLearning; Special Focus: Abscess;

    Persistance of the inflammatory changes surrounding the right ICA and deep parapharyngeal space

     
    Area of Interest: Vascular; Imaging Technique: CT; Procedure: eLearning; Special Focus: Abscess;
     
     
  • Figure 3
    MRI control
     

    Contrast enhanced MRI control showing an abscess in the right deep parapharyngeal space and inflammatory changes surroundind the ICA

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: MR; Procedure: eLearning; Special Focus: Abscess;

    Contrast enhanced MRI control. Flow void image adjacent to the right ICA

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: MR; Procedure: eLearning; Special Focus: Abscess;

    3D TOF angiography showing a vascular dilatation of the right ICA

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: MR-Angiography; Procedure: eLearning; Special Focus: Abscess;
     
     
  • Figure 4
    CT angiography
     

    Sagital CT angiography. Vascular dilatation image adjacent to the right ICA proximal to the entrance in the skull base

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT-Angiography; Procedure: eLearning; Special Focus: Aneurysms;

    Axial CT angiography. Vascular dilatation image adjacent to the right ICA proximal to the entrance in the skull base

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT-Angiography; Procedure: eLearning; Special Focus: Aneurysms;

    Volume Rendering. Vascular dilatation image adjacent to the left ICA proximal to the entrance in the skull base

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: CT-Angiography; Procedure: eLearning; Special Focus: Abscess; Aneurysms;
     
     
  • Figure 5
    Arteriography
     

    Conventional arteriography of the right ICA showing the pseudoaneurysm

     
    Area of Interest: Ear / Nose / Throat; Head and neck; Vascular; Imaging Technique: Catheter arteriography; Procedure: eLearning; Special Focus: Abscess; Aneurysms;

    Substraction angiography after coil embolization of the aneurysm cavity

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: Catheter arteriography; Procedure: Embolisation; Special Focus: Abscess;
     
     
Bone window. Occupation of the right middle ear and mastoid cells, erosive lysis and ill-defined irregular edges of the petrous apex suggesting right petrous apicitis.
 
Inflammatory changes in right deep parapharyngeal space
 
Inflammatory changes surrounding right ICA with spasm and decrease in diameter of the artery
 
Postoperative changes after right open mastoidectomy surgery
 
Persistance of the inflammatory changes surrounding the right ICA and deep parapharyngeal space
 
Contrast enhanced MRI control showing an abscess in the right deep parapharyngeal space and inflammatory changes surroundind the ICA
 
Contrast enhanced MRI control. Flow void image adjacent to the right ICA
 
3D TOF angiography showing a vascular dilatation of the right ICA
 
Sagital CT angiography. Vascular dilatation image adjacent to the right ICA proximal to the entrance in the skull base
 
Axial CT angiography. Vascular dilatation image adjacent to the right ICA proximal to the entrance in the skull base
 
Volume Rendering. Vascular dilatation image adjacent to the left ICA proximal to the entrance in the skull base
 
Conventional arteriography of the right ICA showing the pseudoaneurysm
 
Substraction angiography after coil embolization of the aneurysm cavity
 
 
 
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