MRI Brain (3T)
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An abnormality in the right pars opercularis consists of a subcortical triangular region of the increased FLAIR signal, isointense to cortex with a band of signal abnormality extending centrally toward the right frontal horn. There is blurring of the overlying cortex. Although most conspicuous on the DIR sequences, this region of abnormality can also be appreciated on T1 and T2-weighted imaging. Appearance is consistent with focal cortical dysplasia (Taylor's).
No further abnormality identified. No diffusion restriction or susceptibility artefact. Within the limits of a non-dedicated study, the mesial temporal lobes, including the hippocampi, are unremarkable in size, signal and morphology.
Conclusion: Focal cortical dysplasia in the right frontal lobe pars opercularis.