Heavily T2-weighted MRI obtained with high resolution, showing multiple enlarged VRS, visible as well-demarcated CSF like structures, which, dependent on their orientation and plane of imaging, appear as dots (transverse image on the left) or stripes (coronal image on the right). Heavily T2-weighted MRI obtained with high resolution, showing multiple enlarged VRS, visible as well-demarcated CSF like structures, which, dependent on their orientation and plane of imaging, appear as dots (transverse image on the left) or stripes (coronal image on the right). F Barkhof J Neurol Neurosurg Psychiatry 2004;75:1516-1517 ©2004 by BMJ Publishing Group Ltd