Historically, the diagnosis of clinical problems in the head and neck has relied on a combination of physical examination and plain film radiography. Although Ziedses des Plantes' invention of tomography had a major impact on head and neck diagnosis, it remained for the development of CT, MR and modern nuclear medicine to truly revo- lutionize the specialty. Not only have these new techniques provided better definition of osseous structures and soft tissues but adaptations of these techniques have allowed us to study function as well as anatomy. Utilization of the modern imaging techniques...