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FIG 1. Patient 3. Diffuse subependymal heterotopia.
A, Sagittal spin-echo (550/15 [TR/TE]) image shows multiple ovoid subependymal nodules isointense to cortical gray matter, protruding into the lateral ventricle.
B, Axial spin-echo (2500/80) image shows that diffuse heterotopia, lining the lateral walls of the lateral ventricles, remain isointense to gray matter.
C, Midline sagittal spin-echo (550/15) image shows the diffusely thin body of the corpus callosum and a large posterior fossa cyst.
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