Superficial orbital dermoid cyst
Left orbital swelling.
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Well-defined cystic density (-6 to 0 HU) lesion seen in the inner canthus of the left eye. It measures 12 x 12 mm in size.
The lesion is in the typical location at the medial angle of the orbit for a orbital dermoid cyst. The lacrimal sac and underlying bones are normal.
- encephalocele: no herniation of intracranial content; no bone defect
- congenital lacrimal gland cyst: normal lacrimal gland seen, which is identified by presence of air locules
- Vashisht S, Ghai S, Hatimota P, Ghai S, Betharia S M. Cystic lesions of the orbit : A CT spectrum. Indian J Radiol Imaging [serial online] 2003 [cited 2015 Jun 26];13:139-44. Available from: http://www.ijri.org/text.asp?2003/13/2/139/28646
- Chung EM, Murphey MD, Specht CS et-al. From the Archives of the AFIP. Pediatric orbit tumors and tumorlike lesions: osseous lesions of the orbit. Radiographics. 2008;28 (4): 1193-214. Radiographics (full text) - doi:10.1148/rg.284085013
- Ahmed RA, Eltanamly RM. Orbital epidermoid cysts: a diagnosis to consider. J Ophthalmol. 08;2014: 508425. doi:10.1155/2014/508425