Centred within left parietal white matter are 2 closely adjacent cystic regions that demonstrate incomplete suppression of their contents on FLAIR, with a thin T2 hypointense wall containing some susceptibility artefact. Following contrast administration there a few foci of linear enhancement at the margins, plus a punctate enhancing focus immediately inferior. Lesions are surrounded by white matter T2 hyperintensity that tracks inferiorly to abut the lateral wall of the left lateral ventricle trigone, but does not extend into the subcortical U fibres or involve overlying cortex.
There is no cerebral blood volume (CBV) increase. MR spectroscopy in voxels covering with the non-enhancing portions wall demonstrates mild choline elevation in NAA reduction with large lipid lactate peak. Spectroscopy performed within the white matter abnormality only demonstrate a lipid lactate peak with no choline elevation.
Elsewhere in the brain, incidental note is made of a left superior frontal gyrus developmental venous anomaly. There is no hydrocephalus.