Review of imaging modalities and radiological findings of calvarial lesions

Figure 18  Fibrous dysplasia in thirty-five years old male patient who underwent imaging for headache. A: Axial computed tomography on the bone window shows a smooth contoured lesion with ground glass density (arrows) in the left parietal bone; B: On axial T2-weighted image, hypointense lesion in the parietal bone (arrows); C: On coronal FLAIR T2-weighted image, mild hyperintense lesion in the parietal bone (arrows); D: Axial contrast enhanced T1-weighted image shows a well-circumscribed lesion (arrows) with contrast enhancement in the parietal bone. FLAIR: Fluid-attenuated inversion recovery.