A 26-year-old woman with drug-resistant focal seizures is referred for epilepsy surgery evaluation. She has a 5-year history of stereotyped seizures with epigastric aura, fear, and automatisms, refractory to three first-line antiepileptic drugs. Video-EEG monitoring shows right anterior temporal ictal discharges. Dedicated epilepsy-protocol 3T MRI brain is shown. The structure marked **A** demonstrates volume loss compared to the contralateral side. Which of the following best explains why this finding, combined with the clinical and electrophysiological data, makes this patient a suitable candidate for anterior temporal lobectomy with amygdalohippocampectomy?
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