Key concepts in the use of the radiorgraphy as a diagnostic tool for the emergency physician are presented in Chapters 1 and 2—Introduction to Emergency Radiology and Fundamentals of Skeletal Radiology. These chapters provide an introduction to the principles of radiographic analysis that are used throughout the book. Chapters 3 through 12 address the skeletal trdiology of the extremities and pelvis. Chapter 14 continues tieh a discussion of the thoracolumbar spine. Facial inaging is covered in