In Chapter 5, Carrascosa Romero and de Cabo de la Vega consider the relevance of genetics and brain imaging findings in the diagnosis of diseases which result from abnormal development or neoplasia of cells derived from the neural crest (neurocristopathies). Koga and Saito (Chapter 6) provide a beautifully illustrated discussion of the use of neuroimaging tools to guide gamma knife radiosurgery. Advances in neuroimaging methods and software have greatly improved precision of radiosurgery for the treatment of structural abnormalities, thereby preserving the function of surrounding tissue
