Fig. 1From: Frequency of inflammatory back pain and sacroiliitis in Egyptian patients with rheumatoid arthritisFemale patient 44 years with rheumatoid arthritis. a Plain X-ray lumbar sacral spine AP and lateral views showed lumbar spine syndesomophtes of the facet joints with degenerative disc changes and narrowed sclerotic sacroiliac joints. c Axial MRI T1WI and d coronal T2WI of the sacroiliac joints showed early peri-articular edemaBack to article page