Fig. 23

Germ cell tumours in two different children. Post-contrast T1WI (a) shows a large enhancing lesion in the suprasellar cistern extending superiorly into the third ventricle and posteriorly into the prepontine cistern. Sagittal post-contrast T1WI (b) in another child shows enhancing, disseminated germ-cell tumour in the suprasellar cistern, third and lateral ventricles, with involvement of the corpus callosum and optic chiasm