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orbital meningoencephalocele

Thursday 12 January 2012

Definition: Orbital meningoencephalocele is a rare congenital abnormality caused by a defect of the cranio-orbital bones that usually manifests soon after birth as a soft, cystic fullness in the superomedial canthal area with associated exophthalmos.

An orbital approach may be appropriate for a few selected cases in which no bone defect is found on computed tomography.

Orbital meningoencephalocele should be included in the differential diagnosis of isolated congenital conjunctival cystic masses.

References

- Orbital meningoencephalocele manifesting as a conjunctival mass. Terry A, Patrinely JR, Anderson RL, Smithwick W 4th. Am J Ophthalmol. 1993 Jan;115(1):46-9. PMID: 8420377