Presents a concise, "essentials" approach to the pathologic processes most likely to be diagnosed using medical imaging. It familiarizes readers with the radiographic appearance and origins of the disease or injury, as well as the likely prognosis, in order to produce radiographs of optimal quality. Organized by body system, each chapter begins with an explanation of anatomy and physiology before moving on to imaging considerations. This edition includes the most current information on new imaging techniques such as MRI, CT, ultrasound, and PET scanning.