Türk Nöroşirürji Dergisi 1990 , Vol 1 , Num 3
Magnetic Resonance Imaging in Acoustic Neuromas
Tansu MERTOL1, Metin GÜNER1, Hayati ATABAY1, Barış DİREN2, Tuğrul PIRNAR2
1Dokuz Eylül Üniversitesi Tıp Fakültesi Nöroşirürji Anabilim Dalı
2Dokuz Eylül Üniversitesi Tıp Fakültesi Radyoloji Anabilim Dalı
In the examination of posterior fossa and skull base, the computerized tomography (CT) can not give optimum information due to bone artefacts. Especially in pontocerebellar pathologies, diagnostic difficulties arise depending on the localization and size of the lesion. Becuse of its high resolution and the fact that it doesn't cause bone artefacts MRI has an important role in the evaluation of this site. When Gadolinium (a paramagnetic agent) is used, the contrast enhanced MR images give special diagnostic information independent of the size and localization of the lesion. In this study, CT and MR findings of the acoustic neurinomas which are the most common mass lesions of the pontocerebellar angle are compared and the diagnostic value of MRI ise discussed. Anahtar Kelimeler : Computerized tomography, Magnetic resonance imaging, Neuroma