Preface General Principles Arthritis Appendicular Axial Lucent Lesions of Bone Sclerotic Lesions of Bone Periosteal Reaction Soft Tissue Calcifications Fractures Without Significant Trauma Facial Fractures The Painful Joint Prosthesis Orthopedic Hardware Scoliosis Osteopenia Osteonecrosis Skeletal Dysplasias Search this site		Approaches To Differential Diagnosis In Musculoskeletal Imaging Michael L. Richardson, M.D. Arthritis Arthritis may, at times, present a mystifying appearance to the radiologist. However, even complex cases will usually yield to a logical and systematic approach. My personal approach involves consideration of each of the following five principles in turn: Sutton's law Radiographic hallmarks Pattern approach Demographics The law of parsimony I find it helpful to separately consider the arthropathies that affect the appendicular and axial skeleton. In the next two sections, I will apply each of the five principles above to these two categories of arthritis.
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