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Sacroiliitis – Grade 4 (example 1)
Sacroiliitis – Grade 4 (example 1)
Bilateral grade 4 sacroiliitis with complete fusion of sacroiliac joints.
Courtesy of Xenofon Baraliakos, Rheumazentrum Ruhrgebiet Herne, Ruhr-Universität, Herne, Germany.
Graphic 58791 Version 5.0
