Right thalamus mass is again demonstrated, increased in size. A new focus of FLAIR hyperintensity projects from the right anterolateral surface of the tumour into the genu and anterior limb right internal capsule and there is new extension superiorly into the posterior body of the corpus callosum. Foci of ring enhancement within the right thalamic lesion are now evident with marked elevation cerebral blood volume (not shown). MR spectroscopy in the right thalamic tumour demonstrates marked elevation of choline and reduced NAA. No convincing lactate peak is demonstrated (not shown).