Book excerpt: The thoroughly updated Fourth Edition of this acclaimed reference describes and illustrates the full range of pediatric disorders diagnosable by modern neuroimaging. This edition includes state-of-the-art information on the use of proton spectroscopy, diffusion imaging, and perfusion imaging in diagnosing metabolic disorders, brain tumors, abnormalities of cerebral microstructure, and abnormalities of blood flow. New entities have been added to the chapters on metabolic disorders, brain injuries, congenital malformations of the brain and skull, cerebellar disorders, brain tumors, phakomatoses, hydrocephalus, and infections. More than 2,400 images complement the text. A List of Disorders with corresponding page numbers enables readers to quickly look up a disease.