The features are suggestive of a solitary fibrous tumor of the dura (previously known as a hemangiopericytoma): a lobular, enhancing extra-axial mass with dural attachment, skull erosion, and flow voids.

Solitary fibrous tumors of the dura may mimic meningiomas but without calcifications or hyperostosis.

A biopsy of the lesion was performed. Pathology reports a mesenchymal non-meningeal tumor: solitary fibrous tumor/hemangiopericytoma.