Secondary Glioblastoma Multiforme in a Child with Disseminated Juvenile Pilocytic Astrocytoma
Figure 1
Neuroimaging findings of sGBM. Axial noncontrast CT shows stable changes of mineralization of the posterior fossa without hydrocephalus 3 weeks before tumor recurrence (a) and (b). Postgadolinium coronal MRI (c) shows stable suprasellar disease at baseline (arrow) and no evidence of cerebellar mass 3 months prior to relapse (d). Axial and coronal noncontrast CT at relapse 3 weeks following initial CT shows a large cerebellar tumor with extensive edema and compression of the 4th ventricle (e) and (f). Postgadolinium MRI confirms the CT findings with a stable suprasellar mass (g) compared to baseline and a new large posterior fossa cerebellar tumor (h).
