Long-term follow-up of radiosurgery alone for basal ganglia germinoma manifesting as diabetes insipidus – A case report

BG GEM is rare and it may manifest with DI, a possible consequence of peritumoral edema surrounding the hypothalamus. Radiosurgery alone may be an effective treatment option. The occult GEM of the neurohypophysis could also cause DI preceding the radiological onset of GEM. Hence, it is mandatory to follow-up on patients with BG GEM presenting with central DI closely for a long time with periodic clinical and neuroimaging evaluations.