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Pre and contrast scans were performed including an intracranial MRA. Right distal ICA aneurysm once again noted, dimensions 10.5 x 9.5 x 10.1 mm.
There is a focal lesion in the anteromedial aspect of the left occipitotemporal region.The lesion is peripherally located and appears to involve cortex and subcortical white matter. A rounded T2 hyperintense component measures 11.3 x 10 .8 mm in axial dimensions and enhances post administration of contrast. There is a small 3 mm nodule anterior to this. Small amount of surrounding vasogenic oedema. No susceptibility artifact or restricted diffusion.
The left medial occipitotemporal lesion is favoured to represent a low grade neoplastic lesion, differential diagnoses include DNET, ganglioglioma and low grade glial tumour (pilocytic astrocytoma, PXA).