Figure 2.
MRI. Transverse FLAIR (a) shows dilatation of both lateral ventricles and extensive white matter changes, in which the vascular white matter lesions coalesce with the periventricular fluid accumulation due to hydrocephalus. 1mm maximum intensity projection (MIP) of high resolution T2 weighted sequence (b) illustrates the ‘ballooning’ of the lateral foramina of Luschka (arrows). Sagittal T2-weighted image (c) shows dilatation of the fourth ventricle, with a prominent flow artefact over the cerebral aquaduct (*). Arrow points to a lacune in the pons.