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Left frontal intra-axial mass lesion that involves cortex as well as subcortical white matter. The mass lesion causes mild effacement of the frontal horn of the left lateral ventricle, however, there is no marked associated midline shift. There are patchy foci of faint enhancement within the mass lesion which correspond with areas of increased perfusion. No regions of restricted diffusion or suscepability blooming within the lesion.
On spectroscopy, the lesion demonstrates increased choline and decreased NAA with a myo-Ins peak.
No remote intra- or extra-axial mass lesions or acute collections. No acute infarcts.
Mucosal thickening is noted within the ethmoid air cells and maxillary sinuses, inflammatory.
Conclusion: Left frontal intra-axial mass lesion likely represents a glial tumour. Enhancement with increased perfusion suggest either an intermediate grade tumour or a low grade tumour with oligodendroglioma components.