There is a large extra-axial calcified mass overlying the right frontal lobe. The calcifications have a ring and arcs pattern, which suggests a chondroid matrix. There is an osseous pedicle at the inferior aspect of the mass which is continuous with the superomedial aspect of the right sphenoid wing. There is no hyperostosis or remodelling of the cranial vault.
There is moderate mass effect on the adjacent right frontal lobe parenchyma with mild rightward midline shift and compression of the right lateral ventricle (especially the frontal horn).
There is no other intracranial or osseous abnormality.