Teenager with new onset seizure

CT and MRI of glioblastoma
Axial CT without contrast of the brain (above left) shows a hypodense, ill-defined, infiltrative mass centered in the left basal ganglia that contains coarse calcifications. Axial T2 (above right), T1 without contrast (below left) and T1 MRI with contrast (below right) of the brain show the mass to be heterogenous in nature and to have some heterogenous areas of enhancement.

The diagnosis was glioblastoma.