Sacroiliitis is inflammation within the sacroiliac joint. It is a feature of spondyloarthropathies, such as axial spondyloarthritis (including ankylosing...

Cellulitis Erysipelas Mastitis Onychia Folliculitis Omphalitis Arthritis Sacroilitis Myositis Osteitis/Osteomyelitis Spondylitis Chondritis Synovitis Tendinitis...

and often leads to significant morbidity. Ankylosing spondylitis and sacroilitis usually occur independent of bowel disease activity in UC. Ulcerative...

x-rays, or radiographs, taken of their pelvis to check for signs of sacroilitis (often one of the first manifestations of the disease) and structural...