EURORAD ESR

Case 15477

Epidermoid cyst at lateral canthus of eye.

Author(s)
Dr Amit Achyut Ban, Dr Akshay Pendkar, Dr Krutik Vasava, Dr Ketan Rathod, Dr M T Makada, Dr Nandini Bahri.

Dr Amit Achyut Ban, Resident;
Dr Akshay Pendkar, Resident;
Dr Krutik Vasava, Resident;
Dr Ketan Rathod, MD, Assistant Professor;
Dr M T Makada, MD, Associate Professor;
Dr Nandini Bahri, MD, Professor and Head of Department;

Department of Radio-diagnosis, Shri M P Shah Medical college, Guru Gobind Singh Government Hospital, Jamnagar, Gujarat, India.
Email ID: amit23ban@gmail.com
 
Patient
female, 16 year(s)
 
 
  • Figure 1
    Non-contrast MR images.
     

    T2-weighted MR imaging in axial view shows hyperintense lesion (red arrow) at lateral canthus of left eye in preseptal location.

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

    T2-weighted MR imaging in axial view shows hyper-intense lesion at lateral canthus of left eye in preseptal location with internal low-signal areas (blue arrows).

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

    T2-weighted MR imaging in coronal view shows hyperintense lesion (red arrow) at lateral canthus of left eye in preseptal location.

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

    T1-weighted MR imaging in axial view shows hypo to isointense lesion (red arrow) at lateral canthus of left eye in preseptal location.

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

    Diffusion-weighted MR imaging shows restriction (red arrow) at lateral canthus of left eye.

     
    Area of Interest: Eyes; Head and neck; Imaging Technique: MR-Diffusion/Perfusion; Procedure: Diagnostic procedure; Special Focus: Cysts;

    Low ADC values are noted involving lateral canthus of left eye.

     
    Area of Interest: Eyes; Head and neck; Imaging Technique: MR-Diffusion/Perfusion; Procedure: Diagnostic procedure; Special Focus: Cysts;
     
     
  • Figure 2
    Contrast-enhanced MR images.
     

    Pre-contrast T1 fat-suppressed MR imaging in axial view shows isointense lesion at lateral canthus of left eye.

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

    Post-contrast T1 fat-suppressed MR imaging in axial view shows no evidence of contrast enhancement in the lesion at lateral canthus of left eye.

     
    Area of Interest: Eyes; Head and neck; Imaging Technique: MR; Procedure: Contrast agent-intravenous; Diagnostic procedure; Special Focus: Cysts;
     
     
  • Figure 3
    Ultra-sonographic images.
     

    A well-defined hypoechoic cystic lesion (red arrow) is noted involving lateral canthus of left eye with internal inhomogeneity due to presence of keratin debris.

     
    Area of Interest: Eyes; Head and neck; Imaging Technique: Ultrasound; Procedure: Diagnostic procedure; Special Focus: Cysts;

    The lesion shows no evidence of internal vascularity.

     
    Area of Interest: Eyes; Head and neck; Imaging Technique: Ultrasound-Colour Doppler; Procedure: Diagnostic procedure; Special Focus: Cysts;
     
     
T2-weighted MR imaging in axial view shows hyperintense lesion (red arrow) at lateral canthus of left eye in preseptal location.
 
T2-weighted MR imaging in axial view shows hyper-intense lesion at lateral canthus of left eye in preseptal location with internal low-signal areas (blue arrows).
 
T2-weighted MR imaging in coronal view shows hyperintense lesion (red arrow) at lateral canthus of left eye in preseptal location.
 
T1-weighted MR imaging in axial view shows hypo to isointense lesion (red arrow) at lateral canthus of left eye in preseptal location.
 
Diffusion-weighted MR imaging shows restriction (red arrow) at lateral canthus of left eye.
 
Low ADC values are noted involving lateral canthus of left eye.
 
Pre-contrast T1 fat-suppressed MR imaging in axial view shows isointense lesion at lateral canthus of left eye.
 
Post-contrast T1 fat-suppressed MR imaging in axial view shows no evidence of contrast enhancement in the lesion at lateral canthus of left eye.
 
A well-defined hypoechoic cystic lesion (red arrow) is noted involving lateral canthus of left eye with internal inhomogeneity due to presence of keratin debris.
 
The lesion shows no evidence of internal vascularity.
 
 
 
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