Orbital dermoid - superficial

Case contributed by Dr Ian Bickle


Lump overlying the lateral aspect of the left orbital close to the orbital rim. Vision normal.

Patient Data

Age: 14
Gender: Female

1.7cm well defined fatty mass on the superlateral aspect of the left orbital rim.

No calcification.

No intra-orbital extension.

Case Discussion

Orbital dermoid cysts are congenital lesions representing closed sacs lined by an ectodermal epithelium. They divided into deep (within the orbit) or as in this case superficial (adjacent to the orbital rim).

Eighty percent occur in the upper outer quadrant or the lacrimal fossa - an external angular dermoid.

These lesions are usually extraconal, masses with smooth margins, with cystic and/or solid components often with a large amount of intralesional fat.

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Case information

rID: 45646
Published: 4th Jun 2016
Last edited: 6th Jun 2016
Inclusion in quiz mode: Included

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