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. 2015 Nov 10;13:46. doi: 10.1186/s12969-015-0045-5

Fig. 2.

Fig. 2

Enthesitis of the retroarticular interosseous ligaments in a 12-year-old boy with enthesitis-related arthritis. a-c. Consecutive semicoronal STIR MR images demonstrate enthesitis of the retroarticular interosseous ligaments on the right side (arrows). d-f. Corresponding semicoronal T1-weighted images demonstrate that the high signal is seen in the retroarticular fat tissue and not in the cartilaginous part of the SI joint