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Encephalocele-associated temporal lobe epilepsy and skull fibrous dysplasia: a report of two cases Volume 23, issue 6, December 2021

Figure 1

Fibrous dysplasia with encephaloceles in Case 1. (A) Head CT demonstrates mottled ground-glass expansion of the right petrous temporal bone (arrow) and a dysplastic right sphenoid wing (thin arrow), consistent with fibrous dysplasia. (B-D) MRI (axial, sagittal, and coronal sequences) shows a right sphenoid wing encephalocele (arrow) with cerebral parenchyma herniating inferiorly-medially into an osseous defect. (E) MRI (axial) shows an additional, more lateral, temporal encephalocele (arrow). There were also changes of fibrous dysplasia in the right mandible (not shown).

Figure 2

Fibrous dysplasia with an encephalocele in Case 2. (A) Head CT demonstrates ground-glass expansion of the right temporal bone diploic space (arrow), classic for fibrous dysplasia. (B-D) MRI (axial, sagittal, and coronal sequences) shows herniation of brain tissue into the sphenoid wing defect, confirming the encephalocele (arrow).