Bilateral intraorbital meningoencephaloceles and associated midline craniofacial anomalies: MR and three-dimensional CT imaging.

Developmental midline abnormalities involving facial, optic, cranial, and cerebral structures are complex anomalies that require a multidisciplinary therapeutic approach. Radiologic evaluation requires identification of cerebral anatomy, orbital structures, facial bones, and the anterior fossa as well as the relationships of these structures to one another. We report an unusual combination of low-lying cribriform plate, bilateral intraorbital meningoencephaloceles, bilateral hypoplasia of the nasolacrimal ducts and optic nerves, partial atrophy of the corpus callosum, and bilateral frontal and temporal lobe hypoplasia with associated large CSF spaces.