Intra-axial irregular rim-enhancing focus within the left parietal lobe with relatively thick peripheral enhancement and a central cystic focus that does not demonstrate diffusion restriction. Smaller peripheral lobulations are present superolaterally with thinner peripheral enhancement and central foci demonstrating restricted diffusion.
Stippled susceptibilities on SWI within the enhancing capsule suggestive of hemosiderin.
The enhancing capsule is of moderately low signal on T2, with the smaller peripheral lobulations associated with higher T2 signal and thinner walls. Additionally, there is mild but diffuse adjacent sulcal leptomeningeal enhancement posterosuperiorly.
Moderate surrounding vasogenic oedema in the left parietal lobe with patchy extension of high FLAIR signal to involve the posterior corpus callosum body without significant extension across the midline. There is effacement of the lateral ventricle on the left with midline shift to the right.