PMC4310058_01
CT scan of the brain from March 16, 2012 (a) shows bony lesion with predominant ground glass appearance which is extracranial. Additional CT on September 14, 2012 (b) and February 21, 2014 (c) shows progression of the bony lesion with increase in the area of lucency. (d) post-op CT showing reconstruction with titanium mesh. (E-f) pre-operative showing extramedullary lesion with dural enhancement
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F1
The first study, from 2 years prior, showed a skull defect in the right parietal bone [Figure 1a]. The second and third computed tomography (CT) scans showed progressive erosion of the skull [Figure 1b and c]. A magnetic resonance imaging (MRI) was obtained and confirmed the localization of the lesion to the skull [Figure 1e-f]. The abnormal bone was then removed and a mesh titanium plate was used to replace the cranial defect [Figures 1d and 3].
(a) Shows intraoperative image of craniectomy with good margins (large arrows). There is no involvement of the dura mater (thin arrow). (b) Shows the resected cranial defect
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F3
The abnormal bone was then removed and a mesh titanium plate was used to replace the cranial defect [Figures 1d and 3].