Table 2.
Data of 5 patients with subcortical heterotopia
| Patient/sex/age (yr) | Seizure type | Developmental milestones | Neurological examination | EEG findings | MRI characteristics of heterotopia |
| 1/M/27 | Complex partial | Delayed motor | Left hemiparesis | Focal spikes, slow wave | Large, nodular mass at right fronto-parietal lobes, extends across midline and ACC |
| 2/F/15 | Mixed | Delayed walking | spasticity | Focal spikes, slow waves | Small, multiple nodular, right frontal and parietal lobes |
| 3/F/9 | General tonic-clonic | Delayed speech and motor | Right hemipariesis | Spike-wave | Small, multiple, nodular, left parietal and ACC |
| 4/F/7 | General tonic-clonic | Delayed speech and motor | Attention deficit, hyperactivity, bilateral spasticity | General spike-wave | Bilateral curvilinear |
| 5/M/1 | Mixed | Delayed walking | Hyperactive reflexes | General slow wave | Mixed nodular and curvilinear and distorted ventricles |
M: Male; F: Female; EEG: Electroencephalography; MRI: Magnetic resonance imaging; ACC: Anterior corpus callosum.