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Odontoid Fracture - High
Joseph Junewick, MD FACR
over 6 years ago
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Orbital Dermoid Cyst

Case Detail

Anatomy: Neck-Face
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 7 years ago
Updated: over 7 years ago
Tags: PEDS
Modality/Study Types: MR
Activities:
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History

5 year old female with palpable right orbital mass.


Case Images


Diagnosis

Orbital Dermoid Cyst

Findings

MR – Cystic lesion in the superolateral right orbit, associated with remodelling of the orbital wall and restricted diffusion.

Discussion

Orbital dermoids are the most common developmental lesion of the orbit and account for 5% of all orbital masses. They appear most frequently in the upper outer quadrant of the orbit and in close relation to the frontozygomatic suture in older children. Dermoid cysts may be associated with gradual erosive changes in the adjacent bone (scalloping or fossa formation). Progression is typically slow. Dermoid cysts usually follow fluid signal on MR and restriction on diffusion weighted imaging.

Reference

Khanna G, Sato Y, Smith RJH, Bauman NM, Nerad J. Causes of Facial Swelling in Pediatric Patients: Correlation of Clinical and Radiologic Findings. Radiographics (2006); 26:157-171.



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