Intramedullary spinal teratoma: a rare condition with a good outcome - Borlot, Felippe; Soares, Matheus Schmidt; Espíndola, Adriana Ávila de; Reed, Umbertina Conti; Matushita, Hamilton; Teixeira, Manoel Jacobsen (Arquivos de Neuro-Psiquiatria, 2009)