Unanticipated demyelinating pathology of the CNS
Darin T. Okuda
p591 | doi:10.1038/nrneurol.2009.157
Incidentally identified demyelinating pathology within the CNS has been extensively documented in neuropathological studies, and is increasingly being reported during MRI-based premortem investigations. In this article, Okuda reviews data on unanticipated demyelinating pathology from both autopsy and imaging studies, and considers the clinical implications of these findings, including the recently introduced concept of the radiologically isolated syndrome.
Primary dystonia: molecules and mechanisms
Lauren M. Tanabe,
Connie E. Kim,
Noga Alagem
&
William T. Dauer
p598 | doi:10.1038/nrneurol.2009.160
Primary dystonia is characterized by involuntary twisting and turning movements that occur in the absence of overt brain lesions or evidence of neurodegeneration. As Tanabe et al. discuss in this article, advances in structural and functional imaging have facilitated the identification of motor circuit abnormalities in patients with primary dystonia. In addition, the discovery of dystonia-related genes is providing important insights into the cell biological mechanisms that underlie circuit dysfunction.
Antiangiogenic therapies for high-grade glioma
Andrew D. Norden,
Jan Drappatz
&
Patrick Y. Wen
p610 | doi:10.1038/nrneurol.2009.159
High-grade gliomas are highly vascularized tumors that represent attractive targets for antiangiogenic therapies. In this article, Norden et al. discuss the rationale for targeting angiogenesis in high-grade gliomas and review the published clinical trial evidence, focusing primarily on therapies that target vascular endothelial growth factor and its receptors.

Pediatric multiple sclerosis
E. Ann Yeh,
Tanuja Chitnis,
Lauren Krupp,
Jayne Ness,
Dorothée Chabas,
Nancy Kuntz
&
Emmanuelle Waubant for the US Network of Pediatric Multiple Sclerosis Centers of Excellence
p621 | doi:10.1038/nrneurol.2009.158
Despite its relative rarity, pediatric multiple sclerosis (MS) is an important entity, as it provides unique insights into disease processes related to MS. Clinical, MRI and laboratory data suggest differences in the immune response and CNS environment between adults and children with MS. Yeh et al. provide a comprehensive overview of the pediatric MS field, including epidemiology, disease mechanisms, diagnosis and treatment.