Neuronal tumours in epilepsy : dysplasia or neoplasia ?

Departments of Clinical and Experimental Epilepsy and Neuropathology, UCL Institute of Neurology and the National Hospital for Neurology and Neurosurgery, Queen Square, London. WCN1BG, UK. 2 Department of (Neuro)Pathology, Academic Medical Center, Amsterdam, The Netherlands Pathology Unit, University of Padua Medical School, Padova, IT. Neuroradiological Academic Unit, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, Queen Square WC1N 3BG, London 5 Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK Neurosurgery Department, Brighton and Sussex University Hospitals, Brighton, UK Department of Anatomic Pathology, Hospital Pedro Hispano, Matosinhos, Portugal Neuropathology Department, Great Ormond Street Hospital, London, UK Stichting Epilepsie Instellingen Nederland (SEIN), The Netherlands