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Radiology, Vol 138, 601-610, Copyright © 1981 by Radiological Society of North America

ARTICLES

Gliomas of the intracranial anterior optic pathways in children. The role of computed tomography, angiography, pneumoencephalography, and radionuclide brain scanning

M Savoiardo, DC Harwood-Nash, R Tadmor, G Scotti and MA Musgrave

Twenty-two gliomas of the anterior optic pathways in children were reviewed, and the relative merits of computed tomography (CT), pneumoencephalography (PEG), angiography, and radionuclide brain scanning were assessed. Contrast-enhanced CT scans proved to be superior in demonstrating the full extracranial extent of the lesions and spread along the optic pathways; however, PEG was more reliable with small chiasmatic lesions. Angiography rarely provided a specific diagnosis of intracranial optic glioma, but in was diagnostic when the intracanalicular or intraorbital portion of the optic nerve was involved. A protocol for neuroradiological investigation of suspected cases is proposed.




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