Brain MRI confirmed the presence of an intra-axial lesion with well-defined margins that had heterogeneous contrast enhancement with a central necrotic component. The voluminous lesion and its perilesional edema produced a significant mass effect.
The peripheral solid component of the lesion had diffusion restriction and an increase in cerebral blood volume on perfusion-weighted images. Susceptibility-weighted images demonstrated blood vessels and haemorrhagic foci inside the lesion.