CT
In general, CT can provide better assessment of cortical bone such as cortical erosion or sclerosis as well as identification of intratumoral mineralization or calcified matrix which may prove helpful in differential considerations28. Spatiality of bony involvement of the tumor is best demonstrated by CT including expected healing changes post therapy.27,28,36,37. CT of the head to include the entire skull base should be acquired with multidetector CT using thin collimation (0.5 – 0.625 mm). Images should be reconstructed in axial, coronal and sagittal orthogonal planes in soft tissue and bone algorithms32. Contrast is not typically necessary when MRI is available. CTA and CTV (or MRA/MRV) are adjunct radiological exams that can be used to assess vascular anatomy23.