Understanding Sacroiliitis

Ankylosing spondilitis is a chronic systemic inflammatory disorder of an uncertain aetiology.

Sacroiliitis is the inflammation in the sacroiliac joints. Using conventional x-rays to detect this can be problematic and it can take seven to ten years of disease progression for the changes in the joints to be serious enough to show up. This is the pathologic hallmark, and usually one of the earliest manifestations , of ankylosing spondylitis.

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