Review Note

What does this image show? {{c1::a segment of markedly thickened cortical ribbon involving the left frontal lobe characteristic of a cortical migration defect, which is associated with epilepsy. }}

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Adjacent to it in the left frontal region is segment of yellow l corresponding to the region of cortical activation from a verb generation task. There is a small mirror image on the right side. A small contralateral activation is a very frequent finding and is not indicative of true bilateral localization. The left frontal lesion does not have an appearance suggestive of a glioma. The relative lack of significant overlap between the migration defect and the language localization which would if similarly confirmed with other verbal task the finding that a surgical resection could be performed on the adjacent abnormality.