This volume meets the needs of radiology residents to become adept at interpreting musculoskeletal (MSK) imaging studies. It does so by presenting core knowledge and fundamentals that must be learned to accurately and effectively interpret MSK studies by the trainee and non-specialist. The goal is to impart to residents, as well as to refresh for practitioners, essential facts in a concise and readable format so the reader becomes conversant with all imaging modalities used and the essentials of interpretation and technique. Other resources are at too high a level for the resident in training or contain far more information than a resident can easily assimilate during a rotation. The book is part of the Rotations in Radiology series for residents, which defines and encapsulates core knowledge for areas within Radiology, offering a guided, structured approach to imaging diagnosis. It contains sections on 10 key topics in MSK radiology: trauma; arthritis; tumors and tumor-like conditions; metabolic, hematopoietic, endocrine, and deposition diseases; infectious diseases; arthrography; internal derangements of the joints; congenital diseases; and ultrasound. Each section begins with an overview chapter, orienting the reader to the specific concerns and issues related to imaging that anatomic region or category of problem. Each clinical problem or diagnosis is concisely covered to provide a targeted discussion and highlight salient points. For each topic, concise chunks of text will review: definition; clinical features; anatomy and physiology; how to appraoch the image; what not to miss; differential diagnosis; common variants if pertinent; clinical issues; key points; high yield references.