Prevalence of CT features of axial spondyloarthritis in patients with Crohn's disease
2017
BackgroundThe sacroiliac joint and spine are seen on abdominal computed tomography (CT) and may show structural lesions as part of spondyloarthritis.PurposeTo determine the prevalence of CT features of spondyloarthritis in patients with Crohn’s disease (CD).Material and MethodsA retrospective study of structural lesions of spondyloarthritis on abdominal CT was performed. The sacroiliac joints and spine of 120 patients were studied: study group I consisted of 40 patients with known CD and inflammatory back pain, group II involved 40 patients with CD without inflammatory back pain, and group III consisted of 40 patients without known joint or inflammatory bowel disease. Recorded CT features included sclerosis, erosions or ankylosis of the sacroiliac joint, enthesopathy, spinal syndesmophytes, and costovertebral joint lesions.ResultsCT showed structural lesions of the sacroiliac joints in 19/40 (48%) patients with CD and inflammatory back pain (sclerosis [n = 14; 35%], erosions [n = 14; 35%], ankylosis [n = ...
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