Abstract
The relationship between temporal lobe epilepsy and focal limb dystonia is a well-recognized phenomenon, yet its pathogenesis and anatomic foundation are not well understood. Here, we describe 2 patients with refractory focal epilepsy and contralateral focal limb dystonia whose seizures and dystonic symptoms simultaneously resolved after anterior temporal lobectomy and amygdalohippocampectomy. We identified 2 patients within the Mount Sinai Health system with improvement in dystonia after medial temporal lobectomy. Retrospective chart reviews for the clinical history were performed. Patient 1 suffered a traumatic injury of the right temporal lobe, developing left hemidystonia and epilepsy. He received a right amygdala-hippocampectomy, which resolved both. Patient 2 has a history of right temporal glioma resection complicated by an infarct, resulting in left hemidystonia and epilepsy. He received a right medial temporal resection, which nearly resolved both. Our cases demonstrate a medial temporal-basal ganglia network dysfunction in dystonia-epilepsy that was modulated and cured by resective surgery. We hypothesize that the mechanisms behind these observed phenomena were due to a pathologic connectivity of the basal ganglia and amygdala-hippocampus. To our knowledge, these are the first reported cases of dystonia and concomitant epilepsy resolving with temporal lobectomy and provide valuable prognostic information for similarly affected patients.
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