eMedicine Specialties > Ophthalmology > Cornea
Dermoid, Limbal: Differential Diagnoses & Workup
Updated: Aug 2, 2007
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Differential Diagnoses
Juvenile Xanthogranuloma
Peters Anomaly
Other Problems to Be Considered
Foreign body granuloma
Sclerocornea
Staphyloma
Corneal scar (from trauma or infection)
Hemangioma
Atypical pterygium
Workup
Laboratory Studies
- The diagnosis of a limbal dermoid requires a directed clinical examination. Specific laboratory studies are generally not necessary.
Imaging Studies
- MRI
- Some dermoids may appear to extend into the conjunctival fornix or lateral canthus. These lesions may contain connective tissue that entangles with the orbital fat and muscle tissue belonging to the extraocular muscles.
- Radiologic imaging with an MRI can be useful in identifying such lesions, especially if surgical management is being considered.
Procedures
- Biopsy is not necessary, except in rare instances when the diagnosis is doubtful.
Histologic Findings
Limbal dermoids contain choristomatous tissue, including epidermal appendages, adipose and lachrymal gland tissue, smooth and striated muscle, cartilage, brain, teeth, and bone. Lymphoid nodules and vascular elements also have been reported. The surface of the dermoids consists of corneal or conjunctival epithelium. The lesion may be cystic or solid.
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| Overview: Dermoid, Limbal |
Differential Diagnoses & Workup: Dermoid, Limbal |
| Treatment & Medication: Dermoid, Limbal |
| Follow-up: Dermoid, Limbal |
| Multimedia: Dermoid, Limbal |
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References
Baum JL, Feingold M. Ocular aspects of Goldenhar's syndrome. Am J Ophthalmol. Feb 1973;75(2):250-7. [Medline].
Duke-Elder S. System of Ophthalmology: Congenital and Developmental Anomalies. Vol 3. 1963:488-495.
Henkind P, Marinoff G, Manas A, Friedman A. Bilateral corneal dermoids. Am J Ophthalmol. Dec 1973;76(6):972-7. [Medline].
Mann I. Developmental Abnormalities of the Eye. 1957:357-364.
Mansour AM, Barber JC, Reinecke RD, Wang FM. Ocular choristomas. Surv Ophthalmol. Mar-Apr 1989;33(5):339-58. [Medline].
Yanoff M, Fine B. Ocular Pathology. 1982:316-317.
Further Reading
Keywords
dermoid, dermoid choristoma, dermoid cyst, epibulbar dermoid, epibulbar choristoma, corneal dermoid
Differential Diagnoses & Workup: Dermoid, Limbal