Presentation
Refractory epilepsy.
Patient Data
Age: 40 years
Gender: Male
From the case:
Subependymal heterotopia
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Sagittal T1

Two nodules along the left lateral ventricular wall (one of them at the level of trigone and the other at the level of the occipital horn), follow grey matter signal on all sequences.
Hypogenesis of the posterior part of the corpus callosum, resulting in dilatation of the trigones and occipital horns of the lateral ventricles.
Case Discussion
Findings are compatible with subependymal heterotopia, associated with partial callosal dysgenesis.