Book excerpt: Pediatric ultrasound is different to adult ultrasound in all respects. The equipment chosen for pediatric work has different requirements, the technique of scanning is different, the normal anatomy changes throughout childhood and the pathology encountered in childhood are unique to children. This book addresses the 'how', 'why' and 'when' of pediatric ultrasound. Each chapter begins with the 'how': how to scan and what special techniques or tricks to use when scanning children. The 'why' and 'when' discuss the pathology and use of other imaging modalities - an essential skill in pediatric radiology where the limitation of both radiation exposure and number of examinations is of paramount importance.Accessible, step-by-step approachCovers the practical aspects of scanning, as well as the role, value and limitations of ultrasound in diagnosing different diseasesWritten at a level suitable for both students and practitionersNew chapter on the pediatric eyeMajor revision of chapters on General scanning and equipment issues, The head, neck and spine, and The musculoskeletal systemCD with 10 teaching cases which will include dynamic clips