Sacroiliitis as presenting manifestation in immune-mediated inflammatory disorders other than spondyloarthritis: Case series and review of literature.

Sacroiliitis has long been thought to be a fiefdom of the spondyloarthritides. We present 5 different cases of Immune mediated inflammatory disorders (IMIDs) presenting with sacroilitis. Though sacroilitis on Imaging can be seen in postpartum women, Athletes and even normal people, erosions in sacroiliac joint and deep SI joint edema are likely to favour a pathological cause of sacroilitis seen on imaging. We also review the prevalence of sacroilitis in different IMIDs from the available literature. [ABSTRACT FROM AUTHOR]