V Lescure1, A Descazeaud2, F Caire3, H Salle4. 1. Department of urology, CHU Limoges, 2, avenue Martin-Luther-King, 87042 Limoges, France. Electronic address: victorlescure@gmail.com. 2. Department of urology, CHU Limoges, 2, avenue Martin-Luther-King, 87042 Limoges, France. Electronic address: Aurelien.Descazeaud@chu-limoges.fr. 3. Department of neurosurgery, CHU Limoges, 2, avenue Martin-Luther-King, 87042 Limoges, France. Electronic address: francois.caire@chu-limoges.fr. 4. Department of neurosurgery, CHU Limoges, 2, avenue Martin-Luther-King, 87042 Limoges, France. Electronic address: henrisalle1@gmail.com.