Right frontal signal abnormality involving cortex and white matter, with mild expansion. There is minor midline shift anteriorly, but no abnormality of the displaced left frontal lobe. There is T2-FLAIR mismatch. Diffusion is predominantly facilitated. No abnormal enhancement.
Opinion: Features compatible with a lower grade glial tumour. Astrocytoma favoured with T2-FLAIR mismatch and subcortical centre, but oligodendroglioma also possible given position / age.