Meningioma other imaging findings

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Overview

• MR spectroscopy distinguish meningiomas from other diffential diganosis. Features include:

       increase in alanine (1.3-1.5 ppm)
       increased glutamine/glutamate
       increased choline (Cho): cellular tumour
       absent or significantly reduced N-acetylaspartate (NAA): non-neuronal origin
       absent or significantly reduced creatine (Cr)
   MR perfusion: it has good correlation between volume transfer constant (k-trans) and histological grade