Radiopaedia.org

There is a large solitary mass at the grey-white matter junction of the right frontal lobe which demonstrates heterogeneous T1 and T2 signal with a large amount of intrinsic T1 hyperintensity particularly inferiorly and posteriorly. There is a large amount of haemosiderin staining. The lesion demonstrates irregular enhancement. It is surrounded by white matter T2/FLAIR hyperintensity surrounding the mass which spares the cortex. This extends into the genu of corpus callosum.

The mass demonstrates elevated CBV. MRS is non-contributory. 

Conclusion:

Large hemorrhagic right frontal mass is favoured to represent a metastasis, for example melanoma.