Fig. 3From: Frequency of inflammatory back pain and sacroiliitis in Egyptian patients with rheumatoid arthritisFemale patient 45 years with rheumatoid arthritis. a Plain X-ray lumbar sacral spine AP, lateral views showed normal lumbar spine with mild sclerotic margin of the left sacroiliac joint. b MRI-STIR sequence showed edema of the left sacroiliac jointBack to article page