EURORAD ESR

Case 13329

Cerebellar abscess secondary to occipital dermoid cyst with dermal sinus

Author(s)
Muhammad Asim Rana, Habib Ahmad, Awani Patel, Randy Maraj, Nicola F. Orr, Yashwant Kumar, Kamal Naser

King's Mill Hospital,
Sutton-in-Ashfield,
Nottinghamshire, UK.
Email:drasimrana@yahoo.com
 
Patient
male, 28 year(s)
 
 
  • Figure 1
    Cerebellar abscess secondary to occipital dermoid cyst
     

    Sagittal View MRI Brain, T2, FLAIR images showing perilesional oedema in cerebellum and communication.

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

    Sagittal T2, FLAIR images showing perilesional oedema in cerebellum and communication.

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

    Axial T2W image, lesion in midline in vermis region perilesional oedema and mass effect over 4th ventricle with hydrocephalus. Dermal sinus tract through occipital bone defect to scalp dermoid with secondary infection.

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

    Axial T2W image, lesion in midline with perilesional oedema and mass effect. Communication/dermal sinus tract through occipital bone defect to scalp dermoid with secondary infection. Incidental detected right sided...

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

    MRI Brain, axial view, diffusion weighted image showed restricted diffusion.

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

    MRI Brain, axial view, diffusion weighted image showed restricted diffusion.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Abscess;
     
     
  • Figure 2
    Cerebellar abscess secondary to occipital dermoid cyst
     

    Pre-contrast T1W coronal images – high signal in subarachnoid space in posterior fossa consistent with leakage of fatty content of dermoid.

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

    Pre-contrast T1W coronal images – high signal in subarachnoid space in posterior fossa consistent with leakage of fatty content of dermoid.

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

    Pre contrast T1W image shows multiple foci in posterior and midline region of cerebellar folia in keeping with leakage of fat content from high signal dermoid cyst in occipital region of scalp through sinus.

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

    Pre contrast T1W image shows multiple foci in posterior and midline region of cerebellar folia in keeping with leakage of fat content from high signal dermoid cyst in occipital region of scalp through sinus.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Abscess;
     
     
  • Figure 3
    Cerebellar abscess secondary to occipital dermoid cyst
     

    Post-contrast T1W MR shows high signal foci which were non-enhancing suggesting leakage of fat containing dermoid cyst in cerebellar folia.

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

    Post-contrast coronal T1W images showed ring enhancement around focal collection.

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

    Post-contrast coronal T1W images showed ring enhancement around focal collection.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Abscess;
     
     
Sagittal View MRI Brain, T2, FLAIR images showing perilesional oedema in cerebellum and communication.
 
Sagittal T2, FLAIR images showing perilesional oedema in cerebellum and communication.
 
Axial T2W image, lesion in midline in vermis region perilesional oedema and mass effect over 4th ventricle with hydrocephalus. Dermal sinus tract through occipital bone defect to scalp dermoid with secondary infection.
 
Axial T2W image, lesion in midline with perilesional oedema and mass effect. Communication/dermal sinus tract through occipital bone defect to scalp dermoid with secondary infection. Incidental detected right sided acoustic schwannoma.
 
MRI Brain, axial view, diffusion weighted image showed restricted diffusion.
 
MRI Brain, axial view, diffusion weighted image showed restricted diffusion.
 
Pre-contrast T1W coronal images – high signal in subarachnoid space in posterior fossa consistent with leakage of fatty content of dermoid.
 
Pre-contrast T1W coronal images – high signal in subarachnoid space in posterior fossa consistent with leakage of fatty content of dermoid.
 
Pre contrast T1W image shows multiple foci in posterior and midline region of cerebellar folia in keeping with leakage of fat content from high signal dermoid cyst in occipital region of scalp through sinus.
 
Pre contrast T1W image shows multiple foci in posterior and midline region of cerebellar folia in keeping with leakage of fat content from high signal dermoid cyst in occipital region of scalp through sinus.
 
Post-contrast T1W MR shows high signal foci which were non-enhancing suggesting leakage of fat containing dermoid cyst in cerebellar folia.
 
Post-contrast coronal T1W images showed ring enhancement around focal collection.
 
Post-contrast coronal T1W images showed ring enhancement around focal collection.
 
 
 
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