Imaging of elderly patients present specific and unique problems for the radiologist, and this issue of Radiologic Clinics of North America provides the reader with an overview of the health care concerns surrounding geriatric patients as well as a review of the conditions in elderly patients that radiologists will most likely encounter. Topics such as pathophysiology of the aging heart, metabolic bone disease, gastrointestinal and genitourinary disorders, and neurologic disorders are also covered.