['The aim was to identify the common typical and atypical ictal semiologic and EEG features of patients with mesial temporal lobe epilepsy and hippocampal sclerosis who became seizure-free postoperatively.', 'The semiologic and EEG findings of 126 ictal video-EEG recordings of 50 patients who remained seizure-free for at least 2 years (mean=9.46±3.20; range=3-14.5 years) after surgery were reviewed. Statistical analysis was used to determine the frequencies of the most common auras, semiologic features and EEG patterns and to define the symptom clusters.', 'Aura was reported in 82% (n:41) of patients and the most common type was epigastric sensation. Early symptoms were contralateral upper extremity dystonic posturing (66%), oro-alimentary automatisms (50%) and ipsilateral hand automatisms (40%). Ictal EEG findings revealed localized and lateralized activity in 62% of patients. Of the 17 most common early symptoms, there was a tendency toward two clusters. Cluster 2 consisted of findings that were typical for patients with mesial temporal lobe epilepsy whereas Cluster 1 mostly consisted of atypical findings.'] Is complete seizure freedom possible in patients with MTLE-HS after surgery in spite of extratemporal electro-clinical features?