From a dysembryoplastic neuroepithelial tumor to a glioblastoma multiforme: Pitfalls of initial diagnosis on biopsy material, a case report. - Slegers RJ; Beckervordersandforth J; Hoeben A; Hoogland G; Broen MPG; Anten M; Dings JTA; van den Ende P; Henneman WJP; Schijns OEMG (Surgical neurology international, 2022)