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. Author manuscript; available in PMC: 2017 Jan 23.
Published in final edited form as: Handb Clin Neurol. 2016;136:985–1014. doi: 10.1016/B978-0-444-53486-6.00051-X

Fig. 51.5.

Fig. 51.5

Coronal T1 inversion recovery and axial fluid-attenuated inversion recovery (FLAIR) images showing typical changes of focal cortical dysplasia type IIB (arrows) confirmed by postoperative histopathology in a patient with refractory focal seizures with temporal-insular semiology. Note area of cortical thickening and loss of sharpness of the cortical-subcortical transition and cortical-subcortical signal changes (increased FLAIR signal and decreased T1 signal) below the area of cortical thickening that extends toward the ventricle (“transmantle” sign).