Interpretation of epileptogenic lesions: Its limitations in medico-legal experts’ reports

Summary Focal cortical dysplasia (FCD) is the third leading cause of pharmacoresistant epilepsy diagnosed by epilepsy surgery and is a common malformation of cerebral cortical development. It is marked by abnormalities of cortical lamination, neuronal differentiation, and neuronal maturation. These epileptogenic lesions have proven anatomical and clinical correlations. Only one case of incidental FCD had been described. Incidental findings highlight infrequent lesions that go unnoticed when a person is alive. It can be an important finding for pathologists as well as for the forensic expert. The difficulty of the expertise will be in cases where these incidental lesions are known to cause symptoms that may be the cause of death. We wish to argue if they can be used in a medico-legal procedure. We report two cases demonstrating discrepancies between anatomical and clinical features, which should encourage the medical expert to use caution when interpreting neuropathological reports.