A, Axial T1- weighted MR image shows a predominantly isointense lesion in the right parietal bone. A, Axial T1- weighted MR image shows a predominantly.

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Presentation transcript:

A, Axial T1- weighted MR image shows a predominantly isointense lesion in the right parietal bone. A, Axial T1- weighted MR image shows a predominantly isointense lesion in the right parietal bone. The hypointensity within it is suggestive of sinus tract. A streak of hyperintensity is also seen in the epidural region. B, Axial T2-weighted MR image shows the hypointense lesion in the right parietal bone. The epidural collection is hyperintense. C, Axial T1-weighted contrast-enhanced MR image shows diffuse enhancement of the calvarial lesion. Abhijit A. Raut et al. AJNR Am J Neuroradiol 2004;25:409-414 ©2004 by American Society of Neuroradiology