Radiologic Findings in Children with Seronegative Spondyloarthropathies: Distinguishing the chronic arthropathies of childhood.

Radiologic findings in the seronegative spondyloarthropathies are described and illustrated, and the presence, pattern, and usual distribution of peripheral and axial arthritis are discussed. Enthesitis and a family history are often present. Although some features are relatively specific, such as associated psoriatic nail or skin changes, inflammatory bowel disease, or eye and urogenital inflammation, it is difficult to distinguish the different spondyloarthropathies from one another and from juvenile rheumatoid arthritis.