There is a right frontal lesion, with mixed cystic and solid components. Intense irregular rim-like enhancement pattern is seen, as well as enhancement of the solid component. Areas of moderate restriction diffusion are seen within the lesion, corresponding to the solid components (not the fluid / non-enhancing component).
Multiple flow voids are seen within the lesion.
There is a significant amount of surrounding flair signal abnormality, with 13 mm leftward midline shift at the level of the septum pellucidum.
Conclusion:
Findings are most likely in keeping with a high-grade astrocytoma (WHO grade IV).