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J Pediatr Surg. 2012 Oct;47(10):1951-4. doi: 10.1016/j.jpedsurg.2012.06.008.

Prenatal detection and postnatal management of an intranasal glioma.

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  • 1Department of Obstetrics, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo 05403-900, Brazil. mariaokumura@hotmail.com

Abstract

Nasal gliomas are rare benign congenital midline tumors composed of heterotopic neuroglial tissue. They have potential for intracranial extension through a bony defect in the skull base. Neuroimaging is essential for identifying nasal lesions and for determining their exact location and any possible intracranial extension. Computed tomography is often the initial imaging study obtained because it provides good visualization of the bony landmarks of the skull base; it is not, however, well suited for soft tissue imaging. Magnetic resonance imaging has better soft tissue resolution and may be the best initial study in patients seen early in life because the anterior skull base consists of an unossified cartilage and may falsely appear as if there is a bony dehiscence on computed tomography. A frontal craniotomy approach is recommended if intracranial extension is identified, followed by a transnasal endoscopic approach for intranasal glioma. A case is presented of a huge fetal facial mass that was shown by ultrasound that protruded through the left nostril at 33 weeks of gestation. Computed tomography of the neonate suggested a transethmoidal encephalocele. Magnetic resonance imaging showed a huge mass occupying the nasopharynx and the nasal cavity and protruding externally to the face but ruled out bony discontinuity in the skull base and, therefore, any intracranial connection. The infant underwent an endoscopic resection of the mass via oral and nasal routes and pathologic examination revealed intranasal glioma.

Copyright © 2012 Elsevier Inc. All rights reserved.

PMID:
23084215
[PubMed - indexed for MEDLINE]
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