RT Journal Article SR Electronic T1 Choroid Plexus Papilloma with Osseous Metaplasia as a Differential Diagnosis of Calcifying Pseudoneoplasms of the Neuraxis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E51 OP E52 DO 10.3174/ajnr.A2096 VO 31 IS 6 A1 Pereira, D.B. A1 Gasparetto, E.L. A1 Marcondes de Souza, J. A1 Chimelli, L. YR 2010 UL http://www.ajnr.org/content/31/6/E51.abstract AB