FIG 5. Axial images in a 9-year-old asymptomatic boy with a 7-year history of LCH. Top row, T2WI show the hyperintense appearance of the dentate nucleus (white arrow) and its surrounding white matter (black arrow). Note the normal appearance of the lentiform nucleus. Bottom row, T1WI with magnetization transfer contrast show the hyperintense appearance of the dentate nucleus and the lentiform nucleus (white arrows).