Currrent Source Analysis of Interictal Spikes in a Patient With Ictal Grimacing

Facial grimacing can be a manifestation of complex partial seizures from the temporal lobe. We observed a case of seizure with facial grimacing and partial loss of consciousness during an electroencephalography recording. The recording revealed interictal spikes on the left-sided inferior temporal electrodes and ictal discharges starting on the same electrodes. The current source appeared to be in the inferior and lateral temporal areas of the left cerebral hemisphere. These results show that it is possible to localize the current sources responsible for interictal spikes.

Restricted Spinothalamic Sensory Loss Below Thoracic Dermatomal Level Caused by Pontine Infarction

Cerebral lesions can cause dermatomal sensory deficit. The most commonly reported site is the medulla oblongata due to its well-separated sensory systems. Dermatomal sensory deficit that has developed after pontine infarctions have been reported in several cases, the majority of which involved the medial lemniscus. However, restricted spinothalamic sensory loss has rarely been reported in pontine infarctions. We report herein a patient who presented with dermatomal spinothalamic sensory deficits below the tenth thoracic level after pontine infarction.