EURORAD ESR

Case 15320

CT and MRI findings in a case of Carotid body Paraganglioma

Author(s)
Dr Shailesh Bhuriya; Dr Amit Achyut Ban; Dr Nandini Bahri; Dr Jay Satapara.

Dr Shailesh Bhuriya, Resident;
Dr Amit Achyut Ban, Resident;
Dr Nandini Bahri, Professor and Head of Department;
Dr Jay Satapara, Resident.
Department of Radio-diagnosis, Shri M P Shah Medical college, G G Hospital, Jamnagar, Gujarat, India.
Email ID: amit23ban@gmail.com
 
Patient
male, 30 year(s)
 
 
  • Figure 1
    Common locations of head and neck paragangliomas

    Four common sites are carotid body at common carotid artery, jugular foramen, along vagus nerve and within middle ear.

     
    Area of Interest: Head and neck; Imaging Technique: Plain radiographic studies; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 2
    CT images.
     

    Plain CT axial image shows lateral displacement of styloid process[red arrow], anterior displacement of para-pharyngeal fat[blue arrow] and medial displacement of pharyngeal wall[yellow arrow] on right side suggestive...

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Contrast-enhanced CT axial image shows a homogeneously enhancing mass [red arrow] arising from right carotid space.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Contrast-enhanced CT sagittal image shows a homogeneously enhancing lesion[red arrow] causing splaying of external[blue arrow] and internal[green arrow] carotid arteries.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Contrast-enhanced CT coronal image shows a homogeneously enhancing lesion [red arrow] in the right carotid space.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 3
    MR images
     

    T1-weighted image shows an iso-intense lesion in the right carotid space. Hypo-intense areas are suggestive of signal voids of intra-tumoral vessels.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    T2-weighted image shows the typical salt and pepper appearance of the lesion . Hyper-intense areas denote haemorrhage (salt) and hypo-intense areas (yellow arrows) denote signal voids of intra-tumoral vessels (pepper.)

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    T2-weighted sagittal image shows a hyper intense lesion (red arrow) with a salt and pepper appearance.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    T2-weighted coronal image shows a hyperintense lesion(red arrow) with salt and pepper appearance.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 4
    MR T2 weighted sequential STIR images for carotid splaying
     

    Red arrow shows the common carotid on the right side

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Red arrow demarcates the division of the common carotid artery into external and internal carotid arteries.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Note the hyperintense lesion(blue arrow) between the external carotid (green arrow) and internal carotid (red arrow) arteries.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Note the hyper intense lesion (blue arrow) between the external carotid (green arrow) and internal carotid (red arrow) arteries causing splaying of the vessels.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 5
    MIP reformatted images of CT neck
     

    CT coronal image using MIP reformation showing splaying (red arrow) of external and internal carotid arteries on the right side.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    CT sagittal image using MIP reformation showing splaying (red arrow) of external and internal carotid arteries on the right side.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
Four common sites are carotid body at common carotid artery, jugular foramen, along vagus nerve and within middle ear.
 
Plain CT axial image shows lateral displacement of styloid process[red arrow], anterior displacement of para-pharyngeal fat[blue arrow] and medial displacement of pharyngeal wall[yellow arrow] on right side suggestive of carotid space lesion.
 
Contrast-enhanced CT axial image shows a homogeneously enhancing mass [red arrow] arising from right carotid space.
 
Contrast-enhanced CT sagittal image shows a homogeneously enhancing lesion[red arrow] causing splaying of external[blue arrow] and internal[green arrow] carotid arteries.
 
Contrast-enhanced CT coronal image shows a homogeneously enhancing lesion [red arrow] in the right carotid space.
 
T1-weighted image shows an iso-intense lesion in the right carotid space. Hypo-intense areas are suggestive of signal voids of intra-tumoral vessels.
 
T2-weighted image shows the typical salt and pepper appearance of the lesion . Hyper-intense areas denote haemorrhage (salt) and hypo-intense areas (yellow arrows) denote signal voids of intra-tumoral vessels (pepper.)
 
T2-weighted sagittal image shows a hyper intense lesion (red arrow) with a salt and pepper appearance.
 
T2-weighted coronal image shows a hyperintense lesion(red arrow) with salt and pepper appearance.
 
Red arrow shows the common carotid on the right side
 
Red arrow demarcates the division of the common carotid artery into external and internal carotid arteries.
 
Note the hyperintense lesion(blue arrow) between the external carotid (green arrow) and internal carotid (red arrow) arteries.
 
Note the hyper intense lesion (blue arrow) between the external carotid (green arrow) and internal carotid (red arrow) arteries causing splaying of the vessels.
 
CT coronal image using MIP reformation showing splaying (red arrow) of external and internal carotid arteries on the right side.
 
CT sagittal image using MIP reformation showing splaying (red arrow) of external and internal carotid arteries on the right side.
 
 
 
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