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Results for “ENCEPHALOCELE”

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At least 343 records · Page 19Linked to original sources
PubMed2000

Glial lesion of the infratemporal fossa presenting as a soft tissue middle ear mass - rudimentary encephalocele or neural crest remnant?

We report about ectopic glial tissue of the skull base and the parapharyngeal space presenting as a soft tissue mass in the middle ear. An 11-year-old boy presented with bilateral conductive hearing loss since early childhood. The history included previously removed lesions consistent with ectopic neuroglial tissue of the tongue and the parapharyngeal space soon after birth, as well as surgery for cleft palate. High resolution computed tomography of the petrous bone and magnetic resonance imaging were useful in identifying the skull base defect and in characterizing the lesion's relation to the brain. There was no clinical, radiological or surgical evidence of any associated dural defect. The lesion was removed via a modified infratemporal approach. Histology revealed neuroglial tissue with calcifications without any signs of mesodermal or entodermal origin. On the basis of this case the pathogenesis and diagnosis of ectopic brain tissue and its relation to the more commonly encountered meningoencephalic herniations are reviewed. Furthermore therapeutical implications are discussed.

Child↗
PubMed1997

Congenital encephalocele of the medial skull base.

Meningoencephaloceles of the temporal bone are rare. Although most often seen following otologic surgery or trauma, congenital meningoencephaloceles can exist. The clinical presentation, diagnostic evaluation, and surgical management of three patients with congenital meningoencephalocele are presented. Two of the three patients presented to our institution with recurrent episodes of meningitis; one presented with partial complex seizures. Diagnostic evaluation included temporal bone computed tomography with magnetic resonance imaging. In two patients, defects were imaged following high-pressure subarachnoid cisternography with computed tomography. All three patients were found to have congenital defects in the area of Meckel's cave. Early recognition of congenital meningoencephalocele is important to avoid delay of definitive surgical management and neurologic sequelae.

Adult↗