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Mesial Temporal Sclerosis, Right

20ish-year-old male with a long-standing history of seizures localizing to the inferomedial right temporal lobe on EEG. The hippocampus is small on the right with increased T2/FLAIR signal intensity and a somewhat disorganized anatomic configuration of the cortical gray matter and subcortical white matter. In addition, the fornix is small on the right as compared to the left, and the right mamillary body is hypoplastic as compared to the left. There is slight dilatation of the right temporal horn as compared to the left. These imaging findings are compatible with mesial temporal sclerosis on the right. Mesial temporal sclerosis is the most common association with intractable temporal lobe epilepsy. Most patient's present with complex partial temporal lobe seizures. On histologic sectioning, there is neuronal cell loss, gliosis, and sclerosis. Typical MR imaging findings include atrophy of the ipsilateral fornix and mammillary body, increased signal intensity and atrophy of the anterior thalamic nucleus, atrophy of the cingulate gyrus, reduction in volume of the amygdala, and reduction in volume of the subiculum among many other imaging features. Treatment is primarily with antiepileptic agents, but in those who are refractory to medical management, temporal lobectomy or selective amygdalohippocampectomy may be performed. NMR305G For more, visit our website at http://ctisus.com