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.
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