Poster: ECR 2018 / C-1842 / An update on the diagnosis and classification of cystic lesions of spinal channel by: C. Fernandez Cabrera , P. Martin Medina, M. Conde Martin, S. Nagrani Chellaram, L. Koren, E. Salvador, A. Hilario Barrio, A. Ramos Gonzalez; Madrid/ES